Among those remains is a feature recorded under the name Bohernaneeve, a placename that translates roughly from the Irish as the road of the saints or the path of the saints, suggesting a processional route of some kind across this small, windswept Atlantic island.

Caher Island, known in Irish as Cathair na Naomh, meaning the stone fort or city of the saints, has been associated with early Christian monasticism and with Saint Patrick, though the island's actual history of use likely stretches across many centuries of devotional activity. The pilgrimage pattern, or turas, traditionally takes place in late July and involves moving between a series of stone-built features, including leachta, which are low rectangular cairns used as prayer stations, as well as a small oratory and various cross-inscribed slabs. The Bohernaneeve would have functioned as part of this penitential circuit, a defined path worn into the landscape by generations of barefoot walkers completing rounds between sacred stations. Such routes are a distinctive feature of early Irish Christianity, where the physical act of movement through a sacred landscape was itself understood as a form of prayer.

The island is uninhabited today and reaching it requires arranging a boat from the Roonagh Quay area near Louisburgh. The crossing is weather-dependent and the island itself is rugged, with no facilities of any kind. The annual pilgrimage typically falls around the last Sunday of July, when a priest accompanies the group making the crossing, and that is the occasion on which the old path is most likely to be seen in active use.