Who those seven daughters were, and why they gave their name to a small medieval building in a graveyard above the Atlantic, is not recorded. The name alone is enough to make the place feel slightly apart from the ordinary run of roofless rural churches.

The ruin sits around 400 metres south-west of Renvyle Castle, set within the older portion of a graveyard at Cashleen. The church is modest in scale, measuring roughly 13 metres long and 5 metres wide externally, and oriented east to west in the standard medieval fashion. Three of its walls survive nearly intact, though most of the western end has collapsed. The doorway, unusually, is set in the north wall rather than the west, and is formed with a pointed arch. At the east end, a single-light window with a triangular head lights what was once the most sacred part of the interior; directly below it sits an altar, and in the south-east corner there are two aumbries, small recessed wall-cupboards used in medieval churches to store liturgical vessels. A partially robbed window survives in the south wall, and beam-slots cut into that same wall show where a loft or gallery once spanned the western end of the building, suggesting a congregation large enough to need upper-level space. A later dividing wall towards the west end points to some reorganisation of the interior at a period after the original construction. Possible traces of an earlier doorway are also visible in the masonry of the collapsed western wall, hinting at alterations across more than one phase of use.

About 120 metres to the north-north-east of the church, a holy well is associated with the same site. Holy wells in Ireland were often maintained as places of local devotion long after the formal religious use of a nearby church had ceased, and the proximity of well and church here suggests the landscape held a particular significance that outlasted any single period of occupation. The graveyard itself, still in use in its newer sections, frames the ruin in a way that keeps it connected to the living community rather than entirely surrendered to archaeology.