
O'Brien's Castle
The ruins of a 14th-century castle built inside an older stone ring fort, on the highest ground of the island.
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Inisheer, Ireland
Inisheer is the smallest and easternmost of the three Aran Islands, in Galway Bay. It has a small village, stone walls, a ruined castle and a lighthouse, and is easy to explore on foot. Irish is spoken here.
Inis Oírr airport is about 1 km from central Inisheer.
The island has minibus and pony-and-trap tours; the village and the pier are close to the aerodrome.
Ferries reach the island's pier from Rossaveal, near Galway, and from Doolin, in County Clare. They are the usual alternative to flying.
Inisheer

The ruins of a 14th-century castle built inside an older stone ring fort, on the highest ground of the island.
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The island's lighthouse, on the south coast, with views over the Atlantic and the Clare cliffs.
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The rusting hull of the Plassey, a cargo ship that ran aground on the island's rocks in 1960.
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The island's small harbour, where the ferries arrive and the traditional currach boats can be seen.
Tickets →Inisheer is served by Inis Oírr (INQ).
Inis Oírr airport is about 1 km from central Inisheer.
From Inis Oírr airport you can take Island taxis and minibuses (taxi) and Ferries (boat). Pre-booked taxis and private transfers are also available.
Highlights of Inisheer include O'Brien's Castle, Inisheer Lighthouse, Plassey shipwreck, and Harbour.