That distinction usually falls to the Great Blasket, with its well-documented community and its literary legacy. Inis Tuaisceart, by contrast, sits roughly two and a half miles to the north, surrounded entirely by sea-cliffs, its 241 acres of thin-soiled rock largely empty of any human trace. The northern half of the island shows no evidence of settlement at all. What little remains of early occupation is confined to the southern half, where a small field system survives, and within it, a cluster of remains associated with an Early Christian settlement dedicated to St. Brendan.

Within that settlement, a curvature in the western enclosing wall is thought to indicate the former location of a hut-site, the kind of modest stone cell that early monastic communities on the Irish Atlantic coast typically used for prayer and shelter. On the upper terrace nearby, a single grave is exposed. These are quiet, ambiguous details, the sort that survive at the edge of the record rather than at its centre. The settlement's association with St. Brendan connects it to a broader tradition of early Christian island monasticism along the Dingle Peninsula, a coastline with an unusual concentration of such sites. The archaeological survey of the Corca Dhuibhne region, published by J. Cuppage in 1986, provides the principal documentation for what is known here.

Inishtooskert lies about four miles off the western tip of the Dingle Peninsula, and access depends entirely on sea conditions and the availability of a boat. The island is uninhabited, and the cliffs that bound it on all sides mean that landing is itself a matter of circumstance rather than convenience. The field system and enclosure are located in the southern part of the island, and the subtle curve in the enclosing wall at the western end is the detail most likely to reward a careful eye.