Islands in County Dublin

Four of the eight here can be reached on foot. North Bull Island sits at the inner end of Dublin Bay, with the Clontarf promenade and its Art-Deco shelters running out along the shore; the island is a national nature reserve of dunes and salt-marsh, with five kilometres of Dollymount Strand and over 300 recorded bird species. Royal Dublin, a Harry Colt links, occupies the same sandbank, reached across a wooden bridge from Clontarf. Shenick, off Skerries, has a Martello tower you can walk out to at spring low tide.

The boat trips run from the north county. Ireland’s Eye is a mile off Howth, a 15-minute crossing from the West Pier, with a 2.5 km loop walk of about two hours; not every sailing lands, so ask before you pay. Rockabill, four miles off Skerries, holds Europe’s largest roseate tern colony, so landing is banned in the breeding season, though Skerries Sea Tours runs 75-minute trips from late April to early October. Lambay, three miles off Portrane, is private and open only on a pre-arranged tour.

Dalkey is the only southern entry. The village, the harbour and the 14th-century castle are walkable together, and the island 300 metres offshore holds a 7th-century church, an 1804 Martello tower and a herd of feral goats. Seabird interest peaks in summer at Ireland’s Eye and Rockabill; the Bull Island shore works in any weather.

Where to start

  1. Clontarf – promenade and Bull Island Clontarf

    A flat bayside promenade of Art-Deco shelters running out to Bull Island, with the 1014 battlefield and a UNESCO biosphere reserve at the end.

  2. Dalkey – village, castle and island Dalkey

    An affluent seaside village with a working harbour and 14th-century castle, facing an uninhabited island of feral goats, a Martello tower and a ruined church.

  3. Ireland’s Eye – seabird island off Howth Howth Harbour

    A 54-acre seabird island a mile off Howth, reached by a 15-minute ferry from the West Pier, with a 2.5 km loop walk taking about two hours.

  4. Lambay Island – wallabies off Dublin Off the coast of Portrane

    A private island three miles off Portrane with red-necked wallabies, a Lutyens castle and cliffs of guillemots, open only on a pre-arranged tour.

  5. North Bull Island – birds and the Bull Wall Bull Island

    A national nature reserve that built itself from trapped sand, holding dunes, salt-marsh, five kilometres of Dollymount Strand and over 300 recorded bird species.

8 of 8 shown — tap a pin for the place.

Ireland's Eye, Howth Harbour, Co Dublin
Ireland's Eye, Howth Harbour, Co Dublin Courtesy Shannon Heritage DAC

Ireland’s Eye – seabird island off Howth

Howth Harbour, dublin

Ireland's Eye is a 54-acre island a mile off Howth, reached by a 15-minute ferry from the West Pier. It holds the ruins of an 8th-century church and an 1803 Martello tower, and its seabird colonies – guillemots, razorbills, kittiwakes and puffins, with gannets on the offshore stack – make it nationally important. A 2.5 km loop walk takes about two hours. Not every ferry lands on the island, so check before you pay.

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Rockabill Lighthouse, Skerries, Co Dublin
Rockabill Lighthouse, Skerries, Co Dublin Courtesy Shannon Heritage DAC

Rockabill Lighthouse – Europe's tern island

Rockabill, dublin

Rockabill is two granite rocks about four miles off Skerries, topped by a black-and-white lighthouse first lit in 1860. The larger rock holds Europe's biggest roseate tern colony, roughly 80% of the northwest European population, so landing is banned through the breeding season. Skerries Sea Tours runs 75-minute boat trips out to it from late April to early October.

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Questions people ask

Which Dublin islands can I reach without a boat?
North Bull Island is joined to the Clontarf shore, so the promenade, Dollymount Strand and the sea wall out to the lighthouse are all walkable, as is Royal Dublin across a wooden bridge. Shenick, off Skerries, can be walked out to at spring low tide.
How do I get out to Ireland's Eye?
A ferry runs from Howth West Pier and the crossing takes about 15 minutes. Not every sailing actually lands on the island, so check before you pay. Once ashore, the 2.5 km loop walk past the church ruins and Martello tower takes roughly two hours.
Can I land on Rockabill or Lambay?
Neither allows a casual landing. Rockabill holds Europe's biggest roseate tern colony, so going ashore is banned through the breeding season, but Skerries Sea Tours runs 75-minute boat trips from late April to early October. Lambay is private and visits must be arranged in advance as a tour.
Where on the coast do these cluster?
Most sit on the north Dublin coast: Ireland's Eye off Howth, Lambay off Portrane, and Rockabill and Shenick off Skerries. Clontarf, Bull Island and Royal Dublin are together on the inner bay, close to the city. Dalkey is the only entry south of the Liffey.
Which is best for birds?
Bull Island is the easiest, with over 300 recorded species across dunes and salt-marsh and no boat needed. For seabird colonies, Ireland's Eye has guillemots, razorbills, kittiwakes and puffins with gannets on the stack, while Rockabill is the tern island and Shenick adds hauled-out grey seals.

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