A twin-arched sea stack — locally Na Brístí, "the breeches" — rising from the Atlantic just off the Crohy Head peninsula, reached by a short walk over a grassy field with no visitor centre, no café and no crowd.
The main arch, Brístí, stands about 25 m high roughly 100 m offshore and is fully visible from the cliff path, so you do not have to descend or time the tide to see it. It is the largest of three arches at Crohy Head and the only one wholly visible from above.
Two smaller arches, remnants of old soapstone mining, sit among boulders and shingle below the cliff and are only reachable at low tide. The descent is steep and ungraded; at high water the beach disappears and the route back can be cut off.
The headland faces west and north-west: sunrise throws warm colour across the arch while sunset brings cloud and reflection on the water. A wide-angle lens takes in cliff and arch together.
The grassy track runs from a roadside layby to the cliff edge, part of the long-distance International Appalachian Trail. A signal station was built here in 1804 and a Second World War coast-watching lookout stood on the headland; expect Atlantic cliff seabirds in spring and early summer and grey seals on the lower rocks.
Maghery village and its beach are minutes away, the Arranmore Island ferry leaves from Burtonport about 20 minutes' drive off, and the island ring fort of Doon Fort is roughly 40 minutes away. Dungloe, 8 km east, has shops, cafés and fuel.
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