Among its features is a leacht, a term for a low, rectangular or cairn-like stone structure associated with early Irish Christian devotion. Leachta (the plural form) are found on pilgrimage sites across the west of Ireland, typically serving as stations where prayers were offered, rounds walked, and penance performed. They are modest things by any measure, easily mistaken for field clearance or collapsed walling, but they carry considerable ritual weight in the landscape they inhabit.

Caher Island, known in Irish as Cathair na Naomh, or City of the Saints, has long been associated with St Patrick and with the broader tradition of Atlantic pilgrimage that once drew people to remote, difficult places as an act of devotion in itself. The island holds the remains of an early monastery, including a small oratory and enclosing walls, and the leacht sits within this devotional landscape as one element of what was almost certainly a structured pilgrimage circuit. Such circuits, known as turas, involved moving between fixed stations in a prescribed order, often barefoot, often in silence. The physical effort of reaching Caher Island, which requires crossing open Atlantic water and landing on an exposed shore, would itself have been understood as part of the spiritual exercise.