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Coastal Overview for Cork Harbour to Mizen Head

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What is the route?
This provides a set of waypoints that lead between Cork Harbour and Mizen Head. It also provides a detailed coastal description for the entire distance to support local navigation for those intending to come close inshore or approach one of the havens along its length. The sequence of description is from east to west or coastal clockwise, as follows:

  • • Close South of the Old Head of Kinsale

  • • South of The Stags

  • • South Of Clear Island
The preceding southern coast's set of waypoints and coastal description is available by clicking 'Previous', above, and vessels planning on continuing northwards, past Mizen Head and beyond, can find the following sets of waypoints and coastal descriptions by clicking 'Next'.

Why sail this route?
This is a coastal sequence for cruisers who want to stay in inshore waters to enjoy the coastal scenery that this simply beautiful sailing area has to offer. It is also conveniently close to the many listed passage havens in the islands, bights and estuaries described along the way.

What are the navigational notes?
Please use our integrated Navionics chart to appraise the route. Navionics charts feature in premier plotters from B&G, Raymarine, Magellan and are also available on tablets. Clicking the 'Expand to Fullscreen' icon opens a larger viewing area in a new tab.

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Please zoom out (-) if all of the waypoints are not displayed.
The above plots are not precise and are indicative only.


The sixty-three miles of coast between Cork Harbour and Mizen Head is one of the countries prime leisure sailing destinations as well as being the normal landfall for vessels approaching Ireland from the Atlantic Ocean.

The section of coast is characterised by rock cliffs interspersed by numerous headlands and peninsulas. The area near Clear Island, the south-westernmost corner of Ireland, is high and bold with the northerly mainland increasing in height in the backdrop. To the east of Clear Island, the shore retains its bold aspect but is less indented.

The southwest portion of the coast takes the full violence of the North Atlantic’s prevailing westerly gales and is subject to heavy seas and swell. This has created the irregular broken aspect particularly within the area between Mizen Head and Cape Clear Island. Here the coast is indented with a broken bay that abounds in islands, bights and estuaries. It offers a host of safe and beautiful anchorages. The seas become less turbulent as a vessel progresses to the east and likewise the coastline.

The coastline is relatively free of hidden dangers. Fastnet Rock, with a lighthouse, lies about nine miles east-southeast of Mizen Head. It has a Traffic Separation Scheme established to the southeast of the rock. Inshore the well covered but breaking Daunt Rock, off the entrance of Cork Harbour, and the 20 metres high Stag Rocks, off Toe Head, are the principal dangers. There are a few additional off-lying dangers that lie off the salient points.

Tides are weak in this area with spring rates seldom exceeding a maximum of 1 to 1.5 knots offshore although they can run stronger off headlands.

Cruisers should pay particular attention to the areas excellent weather forecasting and not risk a gale at sea over what would most likely be a lee shore here. On the first appearance of a change, seek shelter in one of the many havens the coast has to offer. Marine farming in and around this coastal area is rapidly growing. Large steel-jointed fish cages with tubular rubber sides, are marked on the charts but may be placed anywhere, and the structures are hardly visible. Each cage is required to be marked by two yellow flashing lights and a radar reflector.


The complete course is 63.17 miles from the waypoint '½ a mile east of the Cork Sea Buoy' to '½ a mile southwest of Mizen Head' tending in a west south westerly direction (reciprocal east north easterly).

½ a mile east of the Cork Sea Buoy, 51° 42.935' N, 008° 14.910' W
The Cork Sea Buoy has LFl 10s and is situated 5 miles south of the Cork Harbour entrance. The waypoint is in the alignment 354°T of the leading lights at Dogsnose situated about 1½ miles within the entrance and on the east side of Cork Harbour.

       Next waypoint: 12.62 miles, course 237.38°T (reciprocal 57.38°T)

250 metres south of the Old Head of Kinsale headland, 51° 36.113' N, 008° 32.018' W
This is close in under the Old Head Of Kinsale headland where there stands a lighthouse, black with two white bands, Fl (2) 10s 72m 20M. The southern side of projecting headland has steep cliffs. Comming in close under the headland passes to the north of a race, or overfalls, that extend for nearly a mile southward of the head, that set on the ebb tide it in a south-westerly direction, and on the flood to a south-easterly direction.

       Next waypoint: 27.42 miles, course 251.56°T (reciprocal 71.56°T)

¼ south of Kowloon Bridge South Cardinal (The Stags), 51° 27.323' N, 009° 13.735' W
This passes south of Toe Head and The Stag Rocks, a cluster of rugged, precipitous rocks, 20 metres high, that lies ¾ of a mile south of the headland. A wreck lies about 0.2 of a mile southwest of The Stags and it is marked by Kowloon Bridge south cardinal buoy, Q(6)+L Fl.15s which is moored 800 metres southward of The Stags.

       Next waypoint: 10.99 miles, course 256.16°T (reciprocal 76.16°T)

½ a mile south of the southernmost point of Cape Clear (Clear Island), 51° 24.675' N, 009° 30.830' W
This is south of Clear Island's southernmost extremity Blananarragaun.

       Next waypoint: 12.14 miles, course 279.16°T (reciprocal 99.16°T)

½ a mile southwest of Mizen Head, 51° 26.580' N, 009° 50.040' W
This is immediately outside the races that form, in both directions, of Mizen Head. The headland is made conspicuous lighthouse on a concrete platform Iso.W 4s 44m 15M with the lantern visible 313°-133°.


Residing between Cork Head on the west side and Power Head to the East, Cork Harbour Click to view haven is moulded into the lower reaches of the River Lee. Reportedly the second largest natural harbour in the world and Ireland's second largest port, it is one of the most secure and easily accessed harbours in Ireland. Having the separate ports of Cork, Cobh, Whitegate and Ringaskiddy, within its confines, it is the principal south coast commercial harbour and a key centre for leisure craft sailing. The harbour offers a host of berthing opportunities with shelter from all winds and seas. Ireland’s second largest city, Cork, is situated on both sides of the river about fifteen miles above the entrance.

Cork Sea Buoy with Cork Harbour entrance in the backdrop
Photo: Burke Corbett

The principal features that first present themselves to a vessel approaching Cork Harbour from the sea are the high bluffs of Dogsnose on the east side of the entrance, and Ram’s Head, about 0.6 of a mile north of Weaver’s Point, on the entrance’s western side. On the summit of the Dogsnose, where Fort Carlisle, renamed Fort Davis, will be seen with a notable double wall immediately east, running down the face of the hill to the sea. Fort Camden, renamed Fort Meagher, faces Fort Davis will be also seen on opposite sides of the harbour entrance on the summit of Ram’s Head. One mile south-southwest of Fort Meagher the ruined Templebreedy Abbey, with a spire, stands on high land and a notable water tower, with a radio mast, will be seen close north of the Abbey.

Upon a closer approach, Roche’s Point Light, the disused signal towers and Roche’s Tower, about 410 meters to the east, comes into view. The entrance to the harbour lies 0.8 of a mile south of the forts, between Roche’s Point and Weaver’s Point. The surrounding land on each side of the entrance is relatively low. A light is shown from Roche’s Point. Upon rounding Roche’s Point the entrance to the harbour opens, and the entrance channel is well marked by lighted buoys.

The pretty Robert's Cove opening up to an approach
Photo: Burke Corbett

Four miles to the west of the entrance to Cork Harbour, and eleven miles east-northeast from the Old Head of Kinsale, is the bluff Roberts Head that is made conspicuous by an old telegraph tower about ½ a mile to the north of it. In Carrigadda Bay, at the west side of the head, there is a reef called Long Rock, that uncovers out to the distance of 600 metres from the shore. An anchorage can be had in Robert’s Cove Click to view haven inlet ½ a mile to the north.

The pinnacle of Daunt Rock, with 3.5 metres of water over it, rises from a rocky bed of about 200 metres in diameter. Situated ¾ of a mile to the southwest of Roberts Head the area frequently breaks in bad weather. Its position is marked by a port marker, moored to the east of the rock.

Daunt – port buoy Fl (2) R 6s 4M position: 51°43.531'N, 008°17.665'W

Roche Point light on the east side of the entrance to Cork Harbour
Photo: Charles W. Bash via CC BY-SA 2.0

By night the red light sector of Roche Point lighthouse, on the east side of the entrance to Cork Harbour, covers Daunt Rock. Roche’s Point light sectors are as follows: (Red. Vis.) Red shore-292°. White 292°-016° (84°). Red 016°-033° (17°).White (unintensified) 033°-159° (126°). Red 159°- shore.

Roche’s Point - Fl WR 3s position: 51° 47.586'N, 008° 15.287'W

There is a clear passage between Daunts Rock and Robert’s Head, with 12 and 16 metres of water that cruisers may take advantage in moderate weather. Approaching from the south the alignment 008° T of Templebreedy Church, located four miles north-northeast, and Morris Head 1½ miles north-northeast. From the north, the alignment 241° T of Little Sovereign, 5½ miles west-southwest and Reanies Point, 1½ miles to the southwest – as best seen on Admiralty 1765.
Please note

In unsettled weather this cut must not be attempted, as the sea sometimes breaks right across from the rock to the headland.

Nine miles to the southwest, from Cork Harbour to Oyster Haven, the coast is high, bold, and rocky, with the only danger being Daunt Rock. The most projecting part of the land, between here and the Old Head of Kinsale, is Reanies Point. Bold and precipitous, it rises perpendicularly to the height of about 43 metres and is conspicuous when approaching from the east for a number of gateposts and pillars on it.

⅔ of a mile to the west of Reanies Point, Flat Head is foul to the distance of ¾ of a mile out from the shore.

Big Sovereign shows its distinctive shape in silhouette
Photo: Michael Harpur

Two remarkable rocky islets called The Sovereigns reside in front of Oyster Haven. The westernmost called Big Sovereign, 22 metres high, at ½ a mile to the south of the haven, is precipitous, inaccessible, and bold to. A cleft, through which a boat may pass, divides it into nearly equal portions.

Little Sovereign laying off the east point of Oyster Haven
Photo: Michael Harpur

Little Sovereign is about 300 metres from the east point of the entrance to Oysterhaven. Between Little Sovereign and the mainland is a rock with 2.1 metres of water. The islets are otherwise clear of danger and may be passed at 100 metres off.

Oysterhaven with Kinsale Harbour immediately behind
Photo: Erik Sykora

Two miles to the east of Kinsale, and just within the Sovereign Islands, is the very pleasant and sheltered inlet of Oyster Haven Click to view haven. It is entered between Ballymacus Point and an unnamed point situated about ¾ of a mile east-northeast of Little Sovereign. To the northwest of this eastern entry point is Kimure Point on the east shore of Oyster Haven, about 0.6-mile northeast of Ballymacus Point. The only danger in the haven is Harbour Rock, with a depth of 0.9 metres, situated about ½ a mile within the entrance and midway between Ferry Point and the east shore. The best channel to avoid this danger is the western side of the haven.

Kinsale Harbour as seen from the north
Photo: John Hughes via CC BY-SA 2.0

Situated 1½ miles within the mouth of the Bandon River, about 11 miles southwest of Cork Harbour’s entrance, is the key leisure sailing destination of Kinsale Harbour Click to view haven. The harbour entrance is easily distinguished from seaward by the well its defined river valley. Ardbrack Church, on the east side of the Harbour about a mile within the entrance, stands out conspicuously white. Likewise, Charles Fort will be seen, standing ½ a mile south of the church. At night Charles Fort light leads to the entrance with sectored light coverage: W 358°-004° (6°T). R 004°-168° (164°T). G 348°-358° (10°T).

Charles Fort - Fl WRG 5s position: 51°41.752'N, 008°29.984'W

Kinsale Harbour as seen over James's Fort
Photo: vagabrothers

Entered between Shronecan Point and Preghane Point, about 0.6-mile east-southeast, the harbour is set into the River Bandon estuary. The channel in the vicinity of Blockhouse Point, about 1.2 miles north of Shronecan Point, is marked by lighted buoys. The busy commercial and fishing port provides a secure anchorage to leisure vessels against all winds and seas; albeit subject to a bit of a chop in strong south-easterlies. Sandy Cove Click to view haven located 500 metres east of Shronecan Point, offers an anchorage immediately outside the entrance on the western shoreline.

Kinsale Quay
Photo: Tourism Ireland

The key Kinsale danger is the Bulman Rock, with 0.9 metres of water, that resides 400 metres south from Preghane Point, the eastern point of the entrance. It is bold to, always breaks in bad weather, is marked by a south cardinal buoy and the previously discussed marks for clearing it are well defined.

Bulman - south cardinal buoy Q (6) + LFl 15s position: 51°40.136'N, 008°29.739'W

There is a clear inshore passage for vessels approaching from the east between the Bulman Rock and Preghane Point. The leading mark for which is the north end of Big Sovereign Island, closing with Frower Point – the clearing line as best seen on Admiralty Chart 2053.

The coast between is of moderate elevation and free from danger. Temporary anchorages can be had during west winds about ¾ of a mile to the north in Hole Open Bay East Click to view haven or just over two miles north in Bullen’s Bay.


Located 4½ miles to the south of the Old Head of Kinsale the bold projecting Old Head Of Kinsale headland is bounded by steep cliffs with a lighthouse.

Old Head of Kinsale Headland
Photo: Tourism Ireland

The head’s outer portion rises to a height of 76 metres and is almost isolated except for a narrow isthmus, about 120 metres across, that connects it to the mainland. The isthmus was penetrated by subterranean passages that a tender could pass through and hence the titles Hole Open bays either side. This passage, after many centuries, sadly collapsed in 2008. The ruin of De Courcy Castle stands over the isthmus, and a short distance to the north of it there is an old telegraph tower.

Old Head of Kinsale Lighthouse
Photo: Burke Corbett

On the extreme southern point of the head is a lighthouse. The 30 metres high tower is painted black with two white belts and is visible in clear weather for up to 20 miles. There is a disused light structure standing about ½ a mile north of the light on the eastern side of the headland

Old Head of Kinsale - lighthouse Fl (2) 10s 72m 20M position: 51°36.287'N, 008°32.018'W

On the east side of the head, ½ a mile north of the lighthouse, there is a low-lying flat rock called the Bream. It extends out 200 metres from the shore and is steep-to. Apart from that, the head is quite clear of danger.
Please note

On the ebb tide there is a race or overfalls setting from it in a south-westerly direction, for nearly a mile, and on the flood to the south-east for about same distance.

Between Old Head of Kinsale and Seven Heads, a distance of seven miles in a west by south direction is Courtmacsherry Bay. The bay is traditionally passed over by cruisers observing its exposed aspect plus the dangerous rocks and shoals that impede it. Yet its western shore provides good shelter in westerly winds, and in its northwest corner has the excellent Courtmacsherry Harbour.

The east shore of Courtmacsherry Bay is fringed with rocky ledges, extending up 400 metres from the shore. In its eastern bend is a long sandy beach with foul ground in front of it. Vessels should stay well out of it as it cannot be recommended as an anchorage and sailing vessels can become embayed here with southerly winds. From this to the Old Head the shore is bolder and free from outlying danger.

Lifeboat on moorings in Courtmacsherry
Photo: Pink Elephant

Set in the estuary of a river that enters the bay, about 4.5 miles north northeast of Seven Heads, is Courtmacsherry Harbour Click to view haven. The harbour is shallow restricted by a sand bar and the sand banks on each side of the channel are constantly shifting. The depths over the bar are less than 2.3 metres and it breaks in strong south and south-easterly winds.

If entering the harbour approach from the southeast, the 313°T alignment of the summit of the 49 meters high Burren Hill and Coosnalacka (located close south of Wood Point) leads to the harbour entrance – as best seen on Admiralty Chart 2092. On closer approach pass 300 metres east of Wood Point, the west entrance point, and south of Courtmacsherry Lighted Buoy. A directional light is shown from a white column standing on Wood Point, Red shore to 315°, White 315°- 332°, Red 332° to the shore, plus there is a starboard buoy moored off the spit extending from the north shore.

Wood Point - Fl (2) WR 58, 15m, 6M - position: 51° 38.000’N, 008° 41.000’W

Courtmacsherry – starboard buoy Fl G 3s position: 51° 38.287’N, 008° 40.897’W

This described alignment, or white sector at night, pass through the most outlying dangers in Courtmacsherry Bay which are the Horse, Black Tom, Barrel, and Blueboy rocks.

Horse Rock as seen from Blindstrand Bay with the Old Head just visible in the

Photo: Burke Corbett

Awash at high water Horse Rock resides 600 metres to the east of Barry Point, with a deep and clear passage of 11 to 15 metres of water between them.

Horse Rock (& Foal Rock) – unmarked position: 51° 36.630’N, 008° 40.000’W

Near the middle of the bay, the Barrel Rocks consist of two patches. The outer rock, 1.2 miles out from the north shore, covers on last quarter flood, when its position has in the past been marked by south cardinal perch. Its south side is steep-to, but it is foul for some distance to the northeast of the perch.
Please note

Although noted on Admiralty charts this marker has been planned for dis-establishment by the Commissioner of Irish Lights.

Barrel Rock – south cardinal beacon position: 51° 37.006’N, 008° 37.298’W

Black Tom with the Barrel Rocks and South Cardinal in the backdrop
Photo: Burke Corbett

Between this rock and the north shore, there is another large patch of foul ground that rarely uncovers called the Inner Barrels. There is a passage between these rocks, and the well covered straggling Breen Rock, with 4.5 metres of cover over it, and the foul ground skirting the north shore.

The final key rocks of the Courtmacsherry Bay are the pinnacle rocks of Blueboy and Black Tom. Blueboy has 0.2 metres of water over it and is just under ½ a mile east of the Barrel Rock.

With 2.3 metres of water Black Tom is situated ½ a mile west southwest of the Barrel Rock. Black Tom is marked by a port maker located ½ a mile south by east of the cover rock.

Black Tom – starboard buoy Fl G 5s position: 51° 36.408'N, 008°37.959'W

On the western side of the bay Broadstrand Bay, ½ a mile to the north of Barry’s Point, affords good shelter from westerly and south-westerly winds, in with fine sand with 3 metres.

Seven Heads Bay, 11 miles to the north of Seven Heads, affords shelter from westerly and northerly winds, in from 6 to 7 metres of water with good holding ground. Its north shore rises almost perpendicularly to the height of 102 metres, from which it sinks rather abruptly to Barry Point.

Bold and bluff the 40 metre high Seven Heads is also made conspicuous by an old watch tower upon it. The bottom around the head is uneven and rocky, causing overfalls during the full run of the tide.

Cotton Rock seen breaking from the northeast
Photo: Burke Corbett

½ a mile to the east of Seven Heads is the Baun Bank, with 11 metres of water, and Carrigroar Rock with 8.7 metres, 1.5 miles from the shore in the same direction, that break heavily in bad weather. Cotton Rock, awash at high water, is 300 metres from the shore on the east side of the head.

Between Galley Head and the Seven Heads, a distance of 9½ miles in an east by south direction is Clonakilty Bay.

With the exception of ½ a mile of sandy beach with a conspicuous hotel, that marks the entrance to Clonakilty Harbour, the shores of Clonakilty Bay are generally high, rocky, and fringed with outlying rocks and foul ground.
Please note

The bay has irregular depths in its outer part that almost break in southerly gales and in thick weather it is best to stay well outside of it.

The channel leading in from Ring Head as seen from Inchydoney Island
Photo: Julien Carnot CC BY-SA 2.0

Clonakilty Harbour Click to view haven is entered from the northwest part of Clonakilty Bay, between Muckruss Head and Ring Head the vast majority of the area being occupied by Inchydoney Island and the remainder almost completely dries.

South Ring, Clonakilty
Photo: Michael Harpur

On the east side of the Inchydoney island, there is a narrow channel that is only suitable only for small, shallow craft to enter under power with the benefit of local knowledge. This leads into South Ring and on a rise of the tide to the provincial town of Clonakilty at the head of the harbour.

Dunworley Bay as seen from seaward
Photo: Burke Corbett

Two miles west-northwest of Seven Heads, the small bight Dunworley Bay is full of rocks and foul ground, has the Cow Rock, that dries to 2.6 metres, about ½ a mile from the shore. Directly north of this, there is Horse Rock approximately half way between it and the shore.

Dunworley Bay
Photo: Greg Troszak via CC BY-SA 2.0

Between Dunworley Bay and Clonakilty Harbour, the shore becomes very foul. The well covered Sloop Rock, with 3.2 metres, is about 600 metres off, but drying rocks exist between it and the shore.

½ a mile to the east of Clonakilty Harbour is Sheep Rock, with 0.9 metres of water, is 400 metres offshore.

Seven hundred metres northeast from Duneen Head is Anchor Rock, with 2.3 metres of water, in the track of vessels east and westbound to and from Clonakilty Harbour.

On the west side of Clonakilty Bay, is Dunnycove Bay offers depths from 6 to 8 metres of fine sand and is clean and level. It provides a good anchorage, with westerly winds but is open to the southwest. A conspicuous water tower stands 700 metres west of the shore of the bay at an elevation of 107 metres.

Dirk Bay
Photo: Liam Lysaght

Immediately to the east of Galley Head, on the west side of the entrance of Clonakilty Bay, is Dirk Bay Click to view haven. The bay affords good anchorage in fine sand with westerly winds, abreast of a house that was formally an old coastguard station on the west side of the bay. On the eastern side of the bay is the Carrigduff Rock, that is covered at half-tide, with foul ground 200 metres to the west of it. The Bream Rock, another small patch off the eastern side of the bay and marked on the Admiralty Chart, has not less than 6.9 metres over it at low water.


Galley Head Lighthouse
Photo: Tourism Ireland

Viewed from the east or west the 37 metres high Galley Head, appears like an island. The ruin of Dundeady Castle can be seen on the low neck that connects it with the mainland. A prominent lighthouse, 21-metre high white tower, stands on the extremity of the headland.

Galley Head – lighthouse Fl (5) 20s 53m 23M position: 51°31.798'N, 008°57.210'W

Doolic Rock as seen from Galley head awash at high water
Photo: Tourism Ireland

½ a mile southwest of Galley Head, and awash at high water, is Doolic Rock. The rock is steep-to on the north and east, but foul ground extends 300 metres to the southwest of it.

Doolic Rock with the foul ground to the southwest visibly awash
Photo: Burke Corbett

½ a mile to the southeast of the head are the Clout Rocks with plenty of cover for leisure vessels. 800 metres to the southwest is the well covered Clout Rock has 9.6 metres of water and halfway between that and the headland there is another shoal called the Inner Clout, with 5.5 metres of water. Around these rocks, there are from 11 to 20 metres of water.

Rosscarbery Cathedral just open of Creggan Point
Photo: Burke Corbett

It is advisable to keep at least ½ a mile from the coast at Galley Head. With good weather, leisure craft can use the channel between Doolic Rock and Galley Head. The transit provided to clear the Cloghna Rock is a line of bearing 320° T of the spire of Rosscarbery Cathedral. This is just open of Creggan Point situated a mile to the southeast of the cathedral, and it leads between the Doolic Rock and Galley Head in from 16 to 20 metres of water.
Please note

Wind-against-tide situations develop heavy seas close to the head. Strong currents are experienced off Galley Head and Doolic Rock with the ebb tide setting on to the rock with great velocity. In these circumstances, it is advised a vessel stays offshore.

Situated between Galley Head and High Island, just over six miles to the west, is Glandore Bay, that embraces Glandore Harbour and several small fishing creeks. It is generally foul and rocky near the shore. The western side of the bay consists of steep barren cliffs rising to hills inland whilst the eastern side is made up of two sandy beaches separated by the rugged cliffs of Cloghna Head.

To the northwest of Galley Head, there are the two sandy beaches, separated by the rugged cliffs of 56-metre high Cloghna Head. The southernmost of these, the Long Strand, forms a remarkable feature of the coast. From its eastern end, there commences a bold rocky shore which reaches to Galley Head.

The conspicuous Long Strand to the northwest of Galley Head
Photo: Burke Corbett

½ a mile out from the shore, directly south of Cloghna Head and about 1.5 mile northwest of Galley Head, is Cloghna Rock. Steep-to all round, a rock pinnacle with 0.9 metres of cover, the rock is the most outlying danger in Rosscarbery Bay. Keeping the spire of Ross Carbery Cathedral, just open of Creggan Point, upon the eastern limit of Rosscarbery Harbour, leads 350 metres to the west of Cloghna Rock – as best seen on Admiralty Chart 2092 ‘Toe Head to Old Head of Kinsale’.

Owenahincha Beach, between Creggane Point and Cloghna Head
Photo: Tourism Ireland

Rosscarbery Bay is generally foul and dangerous to approach. The Ross Carbery inlet is all dry at low water as far out as Downeen Point, and not worth considering unless a vessel can dry out on the hard. At high water, the entrance is about 100 metres wide, beyond which it expands and runs up about a mile to the small coastal town of Ross Carbery.

Mill Cove
Photo: Burke Corbett

Just over a mile west-southwest of the Ross Carbery inlet, is the narrow Mill Cove. The conspicuous Black Rocks form a single drying cluster on the western side of the inlet and extend nearly 400 metres offshore. In offshore winds, the bay offers an anchorage to small yacht southwest of a pier within the inlet.

The entrance to Tralong Bay
Photo: Michael Harpur

Less than a mile to the west is Tralong Bay that is a small cove with a beach that dries out half way along the inlet. The shore is foul on the entrance’s western side out to the 14-metre high Tralong Rock with rocks extending 100 metres to the southeast of that. The outer end of the bay provides good shelter in offshore winds. The shore between Tralong and Goat's Head is foul out to a distance of 200 metres all the way.

The head of Tralong Bay
Photo: Burke Corbett

The entrance to Glandore Harbour Click to view haven is located two miles to the northeast of High Island, and it is entered between Sheela Point and Goat’s Head, about a mile to the northeast. Goat’s Head, on the east shore, may be easily distinguished by an old telegraph tower, standing on the cliffs of the headland, at a height of 79 metres. Sheela’s Rock, that dries to 1.5 metres, lies close southeast of Sheela Point.

Adam’s Island touched by the rainbow and Eve between as seen from within
Glandore Harbour

Photo: R. Tanguy via CC BY 2.0

The 27 metres high Adam’s Island lies on the west side of the entrance about 500 metres east of Sheela Point. Between Sheela Point and the island, a distance of about 400 metres, there is a well-covered mid-channel rock that reduces the draft to 3 metres. To the north of the island foul ground extends for up to 200 metres and should be given a wide berth. The east side is clear of danger, and about 800 metres wide, with around 25 metres of water and as such the preferred passage. The 7 meters high Eve Island, lies about 0.7 of a mile north of Sheela Point and should be passed on its east side as sunken rocks lie some distance off the west shore of the Harbour abreast Eve Island.

Glandore Village
Photo: HighKing via CC BY-SA 3.0

About a mile to the southwest of Adam’s Island is Rabbit Island that forms the east shore of the small harbour of Squince, where small fishing vessels find good shelter in westerly winds. There is also a little inlet between Castle Haven and Squince, called Blind Harbour, fit for small boats only.

The small Squince Harbour inside Rabbit Island
Photo: Burke Corbett

Awash at low water springs, the 0.4 meters Belly Rock, lies 300 metres to the south of the rocks that extend from the west end of Rabbit Island.

Belly Rock – unmarked, position: 51° 31.475'N, 009° 07.165'W

The outlying Belly Rock south of Rabbit Island just breaking
Photo: Burke Corbett

This places it very much in the track of vessels taking the Big Sound channel between High Island and the shore, which otherwise presents a clear passage.

Horse Island with its prominent ruined tower
Photo: Burke Corbett

Keeping the north shoreline of Low Island in line with the ruined tower on Horse Island, about bearing 253° T, keeps a vessel well south of Belly Rock.

Passing through Big Sound between High and Low Islands
Photo: Leo Daly

¾ of a mile south-southwest from Rabbit Island and midway between Glandore Harbour and Castle Haven, is the 46 metre high High Island. It is the largest of a cluster of rocks and islets and is steep-to to the south and east, but the group must not be approached too closely from any other side. In very settled conditions a temporary anchorage can be taken, on the southern side of Big Sound, between High Island and the mainland to the north of the group, as marked on Admiralty 2092.

The small bay of Blind Harbour Click to view haven opens approximately ½ a mile east-northeast of the mouth of Castle Haven and 2½ miles east of Glandore. It is partially covered to the southeast by a ragged cluster of rocks called Low and High Island a distance of a mile off, and open to the south.

Castle Haven
Photo: Leo Daly via CC BY-SA 2.0

Located 8½ miles west of Galley Head, and about three miles to the northeast of the Stag Rocks, is the river inlet of Castle Haven Click to view haven. The entrance resides between Horse Island and Skiddy Island, to the east of it, and is about 800 metres wide and free from danger. A prominent 35 metre high ruined tower stands on the east end of Horse Island and Skiddy Island is a remarkable high flat rock. Horse Island, with the 21 metre high and bold-to Black Rock lying off it.

The north end of Castle Haven
Photo: Leo Daly via CC BY-SA 2.0

Reen Point, to the north of Skiddy Island, is skirted by rocky prongs; just within the point, 100 metres from the shore, there is a rocky head called the Colonel Rock. The entrance between Battery Point and Reen Point is free of dangers and has a least depth of 9.1 metres in the fairway, decreasing to 5.5 metres about a ⅓ of a mile further in. A lighthouse is situated on Reen Point providing a sectored light G. shore - 338°, W. -001°, R. - shore.

Castle Haven (Reen Point) - white tower Fl.W.R.G. 10s 9m 5.3M position: 51° 30.980´N, 009° 10.475´W

Yachts in Castle Haven
Photo: Tourism Ireland

On the eastern side of the head is Scullane Bay that is exposed to the southeast, but clear of danger, with gradual soundings to the shore over a clean sandy bottom.

The bluff, bold 29 metres high headland of Toe Head, has an old telegraph tower on its northeastern side. Close inland at Beenteeane Hill, the land rises to the height of 108 metres. The coast in its vicinity is high, barren, and rocky. To the west of the head, foul ground extends to nearly 400 metres from the shore with the Belly Rocks straggler marking its extremity.

The Stags
Photo: Burke Corbett

Situated 0.7 miles south of Toe Head the Stag Rocks forms a cluster of rugged, precipitous rocks, 20 metres high. When viewed from the west they appear like pinnacles. They are moderately steep-to and free from outlying danger. The sound between them and Toe Head, Stag Sound, is more than ½ a mile wide with 37 metres of water, and although it can be rough, provides safe passage. The stranded wreck of the Kowloon Bridge lies about 0.2 of a mile southwest of The Stags. This and The Stags are marked by a south cardinal buoy moored 800 metres to the south.
Please note

The tidal currents attain a rate of 2 to 2.5 knots at springs through Stag Sound.

Kowloon Bridge – south cardinal buoy Q(6)+L Fl.15s position: 51° 27.580'N, 009° 13.735'W

Sunrise at Barloge Creek
Photo: Public Domain

The coast between Toe Head and Kedge Island and, about 4.5 miles west-southwest, is indented by a number of inlets and small bays. The remarkable Barloge Creek Click to view haven is situated between precipitous hills, 2½ miles to the east of Kedge Island. It is frequented by a few fishing boats and the occasional passing yacht but it offers no shelter in southerly winds.

Lough Hyne
Photo: nmtoken via CC BY-SA 2.0

A narrow 350 metres long channel connects Barloge Creek with the picturesque and deep lake of Lough Hyne. It is a large sheet of water with depths from 18 to 36 metres, with which the level of the external seawater meets at half-tide only. Outside of this, there is a rapid in the narrow connecting channel.

Toehead bay
Photo: Michael Foley

To the east of Toe Head, between Barloge and Toe head, there are two deep indentations, called Tragumna and Toehead bays. They afford little or no shelter or anchorage.

Reenabulliga with Kedge Island and Toe Head in the backdrop
Photo: Tourism Ireland

To the east of Baltimore Harbour the coast is high, rocky, barren, and free from hidden dangers. The high flat-topped rocky islet, called Kedge Island resides about two miles east-southeast from the southern entrance to Baltimore Harbour and a ⅓ of a mile south of the coast. A chain of pinnacle rocks extend from the islet to the shore, leaving a narrow passage with 7 metres of water close along by Spain Point, that is sometimes used by locals.
Please note

A tidal race occurs off the southwest extremity of the island.

The entrance to Baltimore Harbour as seen from seaward
Photo: Burke Corbett

Between Sherkin, Spanish Island and Ringarogy Islands and the mainland is the natural harbour of Baltimore Click to view haven; a fishing port and busy yachting centre. The entrance between Beacon Point to the east, marked by a beacon, and Barrack Point on Sherkin Island, marked by a lighthouse.

Baltimore - beacon unlighted position: 51°28.417'N, 009°23.272'W

Barrack Point - white tower Fl.(2)W.R.6s 40m 6/3M position: 51° 28.375´N, 009° 23.670´W

Barrack Point on Sherkin Island
Photo: Tom Vaughan

The entrance is deep but only 80 metres wide, and is not easily made out at any considerable distance. It should also be noted that it is set between a rocky ridge extending from both points. At night is further supported by a sectored light R. 168°-294°, W.-038°, obsc.- 168°.

Baltimore Beacon
Photo: Tourism Ireland

Inside the channel a Light Buoy marks Loo Rock situated on the eastern side of the entrance. The rock uncovers at low water spring tides and can be seen to the northwest of the beacon, and nearly a quarter of the distance across from the eastern to the western points.

Loo – starboard buoy Fl G 3s position: 51° 28.438'N, 009° 23.458'W

Photo: Tom Vaughan


This part of the coast is the natural landfall for vessels approaching Ireland from the Atlantic Ocean. The most prominent objects to first present themselves to these ocean approaching vessels are the 682 Metres high Hungry Hill, the 404 metres Mount Gabriel, discernable by a conspicuous radar dome near the summit, the 250 metres high Dursey Island, and the 214 meters high Great Skellig Island. Closer in, the 229 meters high Mizen Peak will appear in view, and finally the 159 meters high Cape Clear, and Fastnet Rock.

Fastnet Rock as seen from the south
Photo: Burke Corbett

Offshore, about nine miles east-southeast of Mizen Head, Fastnet Rock is a compact 23-metre high schist rock that covers an area of 110 metres by 55 at low water. A granite circular tower lighthouse, 28 metres high, painted white plus a helicopter platform stands upon its southwestern side. Alongside it is the base of an old lighthouse that was erected in 1854 to replace the Cape Clear lighthouse.

Fastnet - lighthouse Fl 5's 49m 27M position: 51° 23.358'N, 009° 36.178'W

The bottom to the west, south, and northeast of the Fastnet is shoal and rocky. A ¼ of a mile to the northeast of Fastnet there is a flat rock, with only 3.4 metres of water over it, that often breaks. The space between the Fastnet and the shore is completely free from danger. Nevertheless, in boisterous weather, the sea can violently break here and there as a result of the rough elevations of the ground. When operating in rough conditions in the vicinity of the Fastnet it is best to keep a mile off the rock.
Please note

A Traffic Separation Scheme has been established five miles southeast of Fastnet Rock, with an inshore traffic zone between the westbound lane and Fastnet Rock. This is well marked on Admiralty Charts and leisure craft may avoid this by taking a route closer inshore that leads east from Mizen Head and pass either north or south of Fastnet Rock.

The view westward over the southern entrance to Baltimore Harbour
Photo: Tom Vaughan

In the vicinity Mizen Head and Cape Clear the coast is high, precipitous, and bold, increasing in height to the north of the Cape Clear, where it is fringed by outlying islets and rocks of considerable elevation. These are easily recognised out to a great distance in clear weather.

From Cape Clear and Sherkin Islands to Goat Island, about 5.2 miles to the northwest, is Long Island Bay. This area, that includes Roaringwater Bay tucked into the sheltered northeast corner, is strewn with numerous islets, rocks and shoals. A feature of practically all the islands in this area is waisting. The islands here erode or are being cut across in waists, or are already cut two and sometimes three, by the sea owing to their sandstone geology. These waists provide a host of sheltered anchorages that can be readily called upon by leisure vessels. The principal destinations in the area are Long Island Sound, Castle Island Sound, Roaringwater Bay and Skull Harbour, on the north side of the bay.
Please note

Large scale marine farms are established within the bay. For those approaching Long Island Bay from sea note the rocky bank called Croa-Lea. The bank lies about 3.2 miles south of Little Goat Island and has a least depth of 27 metres. It creates a considerable heave of the sea over it in westerly gales and breaks in heavy gales.

Long Island Bay’s southeastern side is formed by the northwest sides of Sherkin and Cape Clear Islands. Likewise, the western side of Baltimore Harbour is made up of Sherkin Island. It is less high than its near neighbour Clear Island and slopes more gradually to the bay. Historically called Inisherkin the island is three miles long by 1½ miles wide and hosts a population of just over 100. It is separated from Clear Island by a channel called the Gascanane Sound situated at the southwest end of Sherkin Island.

Sherkin Island's pier in Baltimore Harbour just below the Abbey
Photo: Tom Vaughan

The pier in Baltimore Harbour, situated on the east side of the island just below the Abbey, is the primary anchorage and embarkation place for the island. An inlet, close south and located on the southeast side of Sherkin Island, called Horseshoe Harbour provides an anchorage but has a very narrow entrance that is further constricted by rocks off the western shore. The very sheltered Kinish Harbour on the northwest side mostly dries and is bestrewn with rocks - beware of Carrogoona Rocks just east of the entrance.

A mile to the southwest, three miles long, in an east and west direction, and a mile wide, is the imposing Cape Clear Island. The island is high, precipitous, and bold, especially on its southern side, where it rises abruptly from the sea to the height of 159 metres, but slopes more gradually to the north. Two wind motors will be seen on the summit of the island.

The ruins of the old lighthouse and watchtower on Clear Island
Photo: Julien_e via CC BY SA 2.0

The ruins of an old lighthouse, that was replaced in 1854 by the Fastnet Rock lighthouse, will be seen about midway along the south side of the Island. Likewise, the ruins of Doonanore Castle stand on the northwest side, about 0.8 of a mile north northeast of the Bill of Cape Clear. The southwest extremity of Cape Clear Island is called Cape Clear or Pointabullaun, the southernmost a ridge of rock called Blananarragaun.

Blananarragaun as seen over Cape Clear Island's South Harbour
Photo: Tourism Ireland

Both the west and southern shores of Clear Island are steep and bold to, with 20 to 40 metres of water found 200 metres off. The island is clear all round except its northern side. For about two miles from the Cape, the shore continues clear and steep-to, with the exception of Tonelunga Rock that resides 200 metres offshore near the ruins of Doonanore Castle.

North Harbour (Trawkieran)
Photo: Keith Kingston

To the east of the North (Trawkieran) Harbour Click to view haven, located on the northeastern side of the island, from which a group of islets and rocks extend about ½ a mile offshore, terminating at Bullig Reef. The old telegraph tower east of Baltimore Harbour in range with the white chapel at Sherkin, bearing 082° as best seen on Admiralty 2129, leads to the north of Bullig Reef.

South Harbour (Ineer) Cape Clear Island
Photo: Chris Kealy via CC BY-SA 2.0

Within the extensive and deep cove on the south side of the islands called South Harbour (Ineer) Click to view haven is another anchorage, but it does not afford permanent shelter to a cruising vessel.

Gascanane Sound seen from the summit of Cape Clear Island
Photo: Tourism Ireland

This challenging Gascanane Sound resides between Cooslahan Point, the eastern extremity of Cape Clear Island, and Illaunbrock, an islet off the southwest extremity of Sherkin Island. It is about a mile wide and is divided into two channels by the Carrigmore and Gascanane Rocks. The former Carrigmore Rocks are a group of 6.1 metres high rocks that never cover, and reside about 800 metres northeast of Cooslahan Point. The latter, Gascanane Rock lays nearly 180 metres west of the Carrigmore Group and dries to 1.8 metres but is covered at the half flood. The tides sweep through both channels, especially at springs, with such velocity as to cause dangerous eddies and it should only be approached with a commanding breeze, a reliable back up engine plus good visibility and favourable tides.

Two yachts passing in the 'western passage' between Carrigmore and Crab Rock
Photo: Becky Williamson

With all these in hand, it is particularly convenient cut for moving to and from Baltimore to Clear Island’s North Harbour as it saves at least an hour’s sailing. It can also be used when transiting from Long Island Bay, to or from for instance Schull, Crookhaven etc where it will save at least half an hour. The better channel is the 'Eastern Pass' Route location which is deepest, passing east of Carrigmore Rocks and west of Illanubrock Island. This then passes west of Crab Rock that lies about 300 metres north of Illanubrock Island. There is also a 'Western Pass' Route location, west of Gascanane Rock and east of Cape Clear Island that offers a more direct route for North Harbour (Trakieran) on Cape Clear Island and is not subject to a cross tide. It is however much narrower and Gascanane Rock is only visible for the first half of the flood.

Hare Island as seen from Cape Clear Island
Photo: Tourism Ireland

The area between Long Island and Cape Clear Island is full of islets, rocks, and shoals, and is only navigable in fair conditions with excellent charts and preferably with the benefit of local knowledge. The outer islet, named Calf Island West, has deep water close home to its western point, is the westernmost of three small rocky islets named the West, Middle, and East Calf. To the north of these, there is a nest of rocks that have the 10 meters high Carthy’s Island at their western extreme. Between these rocks and Castle Island, there is a clear passage, called Carthy’s Sound, leading into Roaringwater Bay.

Kilcoe Castle overlooking Mannin Island at the north end of Roaringwater Bay
Photo: Seán Venn

At the northeast extreme of Long Island Bay is Roaringwater Bay that is an extensive shallow inlet. Despite the forbidding name, the bay affords quiet and well-sheltered anchorage. This is by the result of being completely sheltered from the sea by the rocks and islands to the west of it. The bay is extensively used for fish farming so it is essential to make any intended approach during daylight hours with the benefit of Admiralty Chart 2129 that marks the channels.

The view westward from Horse Island Channel through Castle Island Channel
Photo: Burke Corbett

Immediately southeast of Schull Castle Island Channel is entered between the extremity of mainland’s Coosheen Point and Castle Island’s Mweel Ledges. The sound is about ½ a mile wide and free of dangers but it does not offer an effective route into Roaringwater Bay. The eastern end, between the northeastern end of Horse Island and the mainland, is obstructed by the Horse Ridge that dries to 0.3 metres. Admiralty 2129 / 2184 recommend an anchorage at about mid-channel to the south of Capple Point, on the north shore, about a mile east northeast of Coosheen Point. A good anchorage can also be found in the bight that makes up the southeast side of Castle Island.
Please note

Those entering and exiting Schull and Castle Island Sound should note Joan Salter’s Rocks that lie close southwest of Coosheen Point.

The clearest and most direct channel into Roaringwater Bay is via Carthy’s Sound. This occupies the area between Castle Island and Carthy’s Island. Carthy’s Island lies in the middle of the approach to Roaringwater Bay, about ½ a mile south of Castle Island; it is the outermost of a group of islets and rocks that extend east northeast. Steering about east from the latter position, and then keeping Ilaunnnabinneeny Island closing on Carthy’s Island cliffs until the west end of Horse Island bears north, clears the well covered Moore’s Rock, with 2.7 metres of water, but more importantly the Rowmore Rocks situated ½ a mile to the east – the clearing line is as best seen on Admiralty Chart 2129 and 2184. The same course will lead to the outer anchorage off the east end of Horse Island.

Toorane Rocks showing at low water
Photo: Graham Rabbits
A vessel may also approach Roaringwater Bay from the south of the Calf Islands, passing to the east of or between them; but these channels are full of dangers, and a stranger should avoid it if possible. Between East Calf Island and Hare Island, about a mile to the northeast is obstructed in mid-channel by the drying Anima Rock. The foul ground called the Toorane Rocks, extending about 0.8 miles to the southwest from Hare Island, should also be noted. The channel between Carthy’s Island and the Calf Islands also has a shallow area with only 2.1 metres.
Please note

It may be advisable to navigate this area at low water when the Toorane Rocks show, as these dangers are covered at high water.

The extensive shallow inlet of Roaringwater Bay is finally entered between Horse Island and West Skeam Island, about 0.6 miles to the south southeast of Horse Island. In the inner part of Roaringwater Bay, the 16 metres high Mannin Island, lies close offshore at the head of the bay. The Carrigviglash Rocks, with two continuously dry heads, 2.1 and 1 metre high, reside at the south end of an extensive mudflat, about ½ a mile south of Mannin Island. An anchorage may be had ½ a mile east of Horse Island, or with better shelter about ½ a mile north further northeast, in sand with 4.9 metres, aligning Knocktower Point and Folinnamuck Point, two projections on the mainland, on a bearing of 013° as best seen on Admiralty Chart 2129. Other anchorages are also available in the inner part of the bay, in Ballydehob Bay, Poulgorm Bay or south of Carrigviglash Rocks.
Please note

Extensive fish farms exist throughout Roaringwater Bay.

The Calf Island as seen from Clear Island
Photo: Ludovic Péron

To the south of the Calf Islands, between them and Clear Island, there is another passage leading to the Ilen Click to view haven or Skibbereen river. Those wishing to take this passage for both the River Ilen and Baltimore Harbour will find the Baltimore Harbour North Entrance Route location provides a useful set of waypoints. Vessels may also pass to the east of the East Calf, or between it and the Middle Calf.
Please note

All these channels require highly attentive navigation, settled conditions and good visibility for their safe navigation.

Copper Point light structure as seen from Schull Harbour
Photo: Burke Corbett

½ a mile east of Goat Island is Duff Point, the southwest extremity Long Island. Two miles long and about 500 yards wide, it rises near the middle to a modest 29 metres from where it declines to the low shelving point at its northeastern end, called Copper Point. A light is shown from a white 14 metre high round tower.

Copper Point - Light structure Q(3)10s 16m 8M position 51° 30.250’N 009° 32.063’W

The outer shores of Long Island are generally clear to the distance of 90 metres, except near the eastern end, within 0.8 miles of Copper Point, where the, always visible Carrigeenwaun Rocks extend off 200 metres.

The Long Island Channel as seen from the east
Photo: Burke Corbett

On the north side of the island between Long Island and the mainland, is Long Island Channel. It is about 600 metres in width, with good holding ground plenty of water, and affords good shelter. Several anchorages may be obtained in and around the channel as indicated on Admiralty chart 2129 where it indicates; a place within the east entrance of Long Island Channel, in Esheens Bay west of Coney Island, and finally nearly in mid-channel to the south of Coney Island off Long Island.

There are three channels of approach to Long Island Channel, one between Goat Island and Illaunricmonia Island, called Man-of-War Sound, that joins Lough Buidhe to the north of Goat Island. Another between Goat Island and Long Island called Goat Island Sound, and a third to the east of Long Island, between it and the Castle Island, called Castle Island Grounds.

Long, Goat and Illaunricmonia Islands seen over Croagh Bay
Photo: Emma Cooney

Although only 400 metres wide at its northern end, where it is at its narrowest, Goat Island Sound has plenty of water with a least depth of 20.7 metres. Foul ground extends over 400 metres south of the eastern extremity of Goat Island. On the opposite side, off the southwest end of Long Island, and at the north end of Goat Island Sound where the sound is at its narrowest, there are some off-lying rocks and islets. These are the Garillaun Islands and close west to these is the straggling Sound Rock that dries to 1.5 metres very much in the way of a vessel cutting in and out of Goat Island Sound and Long Island Channel.

Extending from the west end of Castle Island are the Castle Grounds. The grounds reach out ½ a mile to Long Island and within this area are the Mweel Ledges. These consist of several rocks that dry, extending out about ¼ of a mile from the western extremity of Castle Island to terminating at Mweel Point.

The Grounds also extend about 0.3 miles to the south-southwest, much of which has a least depth of 5.5 metres, to terminating at Amelia Rock that has 2.1 metres of water over it. It is marked by a green buoy moored 300 metres west by south of the rock, in 16 metres of water.

Amelia Rock - G Lt buoy Fl. G. 3s position: 51° 29.979’N 009° 31.461’W

Please note

Cosheen Crag and Barnacleeve gap in line 000° T, leads to the west of Amelia Rock as best seen on Admiralty 2184.

Long Island and Long Island Channel as seen from the mainland
Photo: Emma Cooney

The ½ mile wide Long Island Channel is entered from east between Copper Point and Skull Point, or from the west between Gun Point and Garillaun Islands, where it leads between Long Island and mainland up to the 11.9 metres high Coney Island.

Croagh Bay
Photo: Burke Corbett

Between Gun Point and Coney Island, there is a shallow inlet called Croagh Bay the runs up to Croagh River, with some detached rocks at its entrance.

Cush Spit Cardinal Long Island Channel
Photo: Burke Corbett

Long Island Channel is obstructed by a shoal bank that fringes the north side of Long Island. The principal danger is Cush Spit, a gravel bank about ½ a mile to the west of Copper Point. The spit stretches about 400 metres out from the island, nearly halfway across to the mainland, and has 0.6 metres of water on its north edge, that is steep-to and is marked by a north cardinal buoy. To the east and west of the Cush Spit, the depths decrease but there is plenty of water for the cruising vessel.

Cush Spit - north cardinal Q 4M position 51° 30.304’N 009° 33.017’W

Schull Harbour as seen from Mount Gabriel
Photo: williamcham

On the north shore, directly north of Long Island’s easternmost point, and at the foot of Mount Gabriel is famous Schull Harbour Click to view haven. The harbour provides an excellent anchorage for leisure craft in a scenic setting. It is free from danger except for one rock called Bull Rock. Situated about midway between the points of the entrance the Bull Rock dries at half-ebb tide and is well marked by a port hand light beacon.

Bull Rock – beacon Fl (2) R 6s position: 51° 30.758’N 009° 32.205’W

Bull Rock beacon with Mount Gabriel and it's radar domes showing in the backdrop
Photo: Burke Corbett


Between Long Island Sound and Crookhaven the coast is deeply indented and skirted by outlying dangers. Spanish Point, about 800 metres north of Sheemon Point, is fringed by foul ground that can extend as far as 135 metres in places offshore.

Goat Island Little's stone beacon
Photo: Graham Rabbits

Goat Island, to the east of Illaunricmonia Island, has rocky shores and rises to the height of 32 metres, and has a channel into Long Island Sound on each side of it. The island is made remarkable by a deep chasm, which almost severs its southern portion, called Little Goat Island. On a hill near the southern extremity of Little Goat Island, a 4.9 metre high stone beacon will be seen. This helps distinguish the island and entrances to Long Island Sound that opens up Long Island Bay.

Castle Point as seen from the northwest
Photo: Burke Corbett

Approximately a mile west-northwest and three miles east of Crookhaven is Castle Point. This is made conspicuous by the ruins of an old square castle standing on a hill, 12 metres high and 300 metres east of Castle Point. Also, the round-topped Tower Hill, rises to 107 metres high, about a mile and a half northeast of Castle Point, where the prominent ruins of Leamcon Tower stand.

Duharrig as seen from the north in silhouette
Photo: Burke Corbett

The 5.2-metre high islet of Duharrig lies 0.4 mile southwest of Castle Point. A narrow channel called Barrel Sound, with depths of 9.1 to 24 metres with a shallower mid-channel section carrying 4.6 metres over a rock, leads between Castle Point and Duharrig. This leads out from the Long Island Channel, through Lough Buidhe between Goat Island and the mainland on the north side that has a least depth of 12.2 metres in the fairway.
Note: It is advisable to only use this channel in very settled conditions or with the benefit of local knowledge aboard.

There are dangerous clusters of rocks and rocky islets at from 400 to 600 metres distance south from the Castle Point. The most dangerous part of this foul ground, called Bulligmore, has two rocky heads, with 0.9 and 3.6 metres of water respectively. The latter depth is southwest by south, ¾ of a mile from Castle Point, and a similar distance west by north from Illaunricmonia Island.
Please note

A clearing line to pass to the south of Bulligmore is marked on the Admiralty charts; keep Streek Head well open of the southern point of Goat Island Little (257°T).

Bulligmore – unmarked 0.9-metre rock pinnacle position: 51°28.845'N, 009°38.385'W

Toormore Bay
Photo: Burke Corbett

To the north northwest of Castle Point is Toormore Bay. The bay is entered between Ballyrisode Point and Castle Point, about 1.2 miles east-southeast. It provides a good anchorage with offshore winds with excellent holding in a mixture of sand and stiff clay.

Amsterdam Rocks as seen from the approaches to Toormore Bay with Crookhaven in
the backdrop

Photo: Burke Corbett

Off Ballyrisode Point, the Toormore Bay’s western extremity, foul ground extends to the south for nearly ½ a mile. Amsterdam Reef is awash at low water and on the outer end of this foul ground, at the distance of 800 metres southwest by south from the point.

Crookhaven Harbour
Image: With thanks to Paul Scally ©

Immediately west, and to the east of Crookhaven, is Ballydivlin Bay that is entered between Sheemon Point and Ballyrisode Point, about 2 miles northeast. Ballydivlin Bay is exposed to south and southeast winds, but in offshore winds offers a sheltered anchorage. The northeast corner of the bay should be avoided as it has many dangers.

Crookhaven as seen from Brow Hill
Photo: Paul Scally via ASA 3.0

Five miles to the east of Mizen Head, and six miles north-by-west from the Fastnet, is Crookhaven Click to view haven. Entered between Streek Head and Sheemon Point, the eastern extremity of Rock Island located ½ a mile north, this haven is a very convenient and popular anchorage; especially so during easterly winds.

Yacht entering Crookhaven Harbour
Photo: Paul Scally via ASA 3.0

The north point of entrance (mainland side) is Rock Island Point, on which stands the lighthouse immediately outside the harbour entrance. The shore here is bold-to and clear of danger. Crookhaven Lighthouse is clearly identifiable 14 meters round cylindrical masonry tower painted white and surrounded by a white wall.

Crookhaven - Lighthouse Fl WR 8s 20m 13/11M position: 51° 28.593’N, 009° 42.273’W

Crookhaven Lighthouse
Photo: Tourism Ireland

The south side is the remarkable Streek Head, that rises abruptly from the sea to a height of 44 metres, has some high detached rocks on its southern side. Part of these dry to 6 metres, Gokane Rock, and the area should not be approached within a 200 metres distance.

Streek Head seen over the Alderman Rocks
Image: Graham Rabbits

Extending 400 to 600 metres to the east of Streek Head are the Alderman Rocks. Rising from up to 9.1 metres above high water they are foul out beyond the Black Horse Rocks. These rocks extend about 135 metres north from Alderman Rocks and are marked by the Blackhorse Rocks beacon.

Blackhorse Rocks - north cardinal beacon Q FL position: 51°28.437'N, 009°41.683'W

Blackhorse Rocks and north cardinal beacon
Image: Graham Rabbits

The Alderman Sound, a narrow channel with up to 5.8 metres of water, resides between the mainland and Alderman Rocks. It is constricted by the dangers on both sides and the cut can only be used in good conditions by local boatmen.

Brow Head as seen from seaward
Photo: Burke Corbett

The 111 metres high and bluff Brow Head slopes down to Galley Cove on its eastern side. Contrary to popular belief, Mizen Head is not the most southerly point on the mainland of Ireland it is, in fact, Brow Head that correctly holds the title. Nevertheless, geography books have long measured the length of Ireland "from Fair Head to Mizen Head" or "from Malin Head to Mizen Head.

Barley Cove
Photo: Philip McErlean via CC BY-SA 2.0

A mile to the east of Mizen Head is Barley Cove. It is made conspicuous by tracts of sand at its head plus the ruins of a signal tower on Brow Head, its eastern entrance point. The small bight is only separated from Crookhaven Harbour by a narrow sandy isthmus. Although, on the face of it, the cove may look inviting but it offers no safety in any wind. In about the middle of it there is a large rock that dries about 2.7 metres and is awash at high water, called the Devil’s Rock.

Mizen Head as seen from the mainland
Photo: Ent-ente vai CC ASA 2.0

The very steep-to Mizen Head resides on the southwest extremity of Cruckaun Island. The island is cut off from the coast by a deep chasm but remains connected to the coast by a narrow neck of land. The chasm is spanned by a bridge that provides access to an old signalling station, a weather station, and a lighthouse. The signalling station, once permanently manned, is now a museum.
Please note

Near the head the tide runs at the rate of 4 kn, causing a dangerous race. At a distance from the shore it loses its velocity, and at 5 miles from the head runs only l.5 knots.

Mizen Head – lighthouse Iso.W 4s 44m 15M position: 51° 26.995´N, 009° 49.225´W

Mizen Head Bridge spanning the chasm to Cruckaun Island
Photo: Burke Corbett
Mizen Head is clear of danger beyond a distance of 200 metres out from the rocks. ½ a mile southeast of the light structure, and 250 metres offshore, there is the dangerous Carrigower Rock that is awash at high water.

The headland is made conspicuous by its remarkable 229 metre high Mizen Peak located about a mile to the northeast. This sharp peak is the highest hill in the vicinity and about halfway between Mizen Head and the peak a ruined tower can be seen at an elevation of 128 metres. 12 miles to the northeast of this is the 404 meters Mount Gabriel that will make itself known by conspicuous radar domes near the summit. Mizen Head has a light shown from a light structure on a concrete platform with the lantern visible 313°-133°.

Vessels continuing north may avail of the Mizen Head to Loop Head Route location coastal description.

Passing westward of Mizen Head
Photo: Burke Corbett

What is the best sailing time?
May to September is the traditional Irish Sailing season with June July offering the best weather. June and July’s statistical incidence of strong winds are however two days of winds up to force seven. As such, depending on personal sailing preferences, a vessel may expect to be held-up or enjoy robust sailing conditions. Ireland is not subject to persistent fog. Statistically complete days of persistent fog occur less than once in a decade.

Are there any security concerns?
Never been a security issue known to have occurred sailing off the Irish coast.

With thanks to:
eOceanic.com research, Photos with thanks to Burke Corbett, Emma Cooney, Ben Rudiak-Gould, Shane Cronin, Libour Kampas & Graham Rabbitts.

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Yacht entering Crookhaven Harbour
Image: With thanks to Paul Scally ©

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