The island itself sits about 500 metres offshore in a sheltered spot, and at low tide, you can actually walk across to explore this National Monument site. The graveyard contains two medieval churches; St Mary’s and St Connell’s; along with fragments of a high cross, four surviving cross slabs, and a graveslab, though one cross slab has gone missing over the years.

St Mary’s Church reveals a fascinating architectural timeline through its very stones. The building consists of a nave and chancel that were constructed during two distinct periods, with the chancel dating to the early 13th century and the nave representing a later medieval rebuild. The chancel, measuring 3.9 metres wide by 6.6 metres long internally, showcases early Gothic features including moulded architrave fragments around what was once the east window. The southeast corner still displays its original three-quarter round shaft rising to a corbel stone, whilst numerous moulded dressings, including two capitals from the original 13th century structure, were incorporated into the later nave walls. The south wall features a narrow window with a semicircular head and wide splays, later modified with additional masonry, and is supported by a partially collapsed buttress.

The rebuilt medieval nave, measuring 9.1 by 5.1 metres internally, has fared less well than the chancel, with only the south wall standing almost to full height whilst the west and north walls survive merely as lower courses. The south door retains its pointed head and draw-bar socket with a segmental rear arch, typical of medieval Irish church architecture. This complex of monuments, designated as National Monument No. 658 and under state ownership, offers visitors a tangible connection to centuries of religious practice on this small Donegal island, set amidst good pasture land that has likely been grazed since medieval times.