In a townland in the barony of West Carbery in County Cork, local tradition holds that a souterrain lies buried to the south of a nearby ringfort, yet the ground gives nothing away. No depression in the soil, no stones protruding, no tell-tale hollow. The place exists almost entirely in memory rather than in the landscape.

A souterrain is an underground stone-built passage or chamber, typically associated with early medieval settlement in Ireland, roughly from the sixth to the twelfth century. They were commonly constructed close to ringforts, the circular enclosed farmsteads that still dot the Irish countryside in their thousands, and were likely used for food storage, refuge, or both. The one at Caher is known only through local oral tradition, passed down rather than recorded through excavation or survey. Its relationship to the adjacent ringfort suggests it would follow the usual pattern, tucked beneath the ground nearby, its entrance long since collapsed or deliberately sealed. Without any visible surface trace, its precise location, dimensions, and condition remain unknown.