Somewhere in the graveyard at Reisk, sitting among the headstones, is a circular stone font with four small projecting lugs, its basin barely half a metre across. It is an oddly domestic object to find outdoors, worn and unhoused, yet it outlasted the church it once served by centuries. The ruin around it, a medieval parish church dedicated to the Blessed Virgin, occupies a rectangular enclosure about forty metres a side, defined by a stone-faced earthen bank on a low hill above the Ballymoat stream. What remains of the building is fragmentary enough that the font, sitting quietly in the open air, is arguably the most complete thing left.

The church is first referenced in 1459, and by 1615 it was recorded as having been repaired, though not entirely: the chancel, the area reserved for the clergy at the eastern end of the church, was left unrestored even then. That neglect proved permanent. The chancel arch still stands, its pointed form built from uncut voussoirs, the wedge-shaped stones that hold an arch together, and above it on the eastern face is a carved head in Dundry stone, a distinctive oolitic limestone quarried near Bristol and imported into Ireland throughout the medieval period, often used for decorative stonework of some ambition. The north chancel wall survives to about a metre in height, and the eastern foundations are traceable, but the east gable itself is gone. Around 1840, the antiquarian John O'Donovan recorded a twin-light, roundheaded window there, roughly 1.3 metres tall; it has since vanished entirely. The nave wall, west of the chancel arch, can be found in traces about eleven metres away, which gives some sense of the building's original scale, though little else of it remains above ground.

The Dundry stone carving above the chancel arch is worth looking for closely. Dundry stone weathers distinctively and the carved head, however worn, carries the slight incongruity of imported material in a rural Waterford ruin, a reminder that even modest parish churches in medieval Ireland were sometimes connected to wider networks of trade and craft.