Known locally as Cill Ghobnait, it is dedicated to Saint Gobnet, a figure associated with early Irish Christianity and, more unusually, with beekeeping. The building is tiny even by the standards of early medieval Irish churches, measuring just 3.93 metres in length and 2.73 metres in width, yet it contains a surprising concentration of early Christian material for something that could almost be mistaken for a large field shelter.

The church is built on an east-west axis, as was customary for early Christian worship, with a trabeate doorway in the west gable, meaning the lintel is laid flat across two upright stones rather than formed into an arch. The east gable holds a round-headed window, and above its arch sits a cross-inscribed stone. Below the window inside, an altar bears a cross-inscribed slab carrying the letters ST and G, taken to refer to Saint Gobnet herself. Scattered around the building are further features typical of early ecclesiastical sites in Ireland. Two bullauns, which are stones with cup-like depressions hollowed into them and often associated with early religious practice, lie to the west and south-south-east of the church. Three leachta, low rectangular platforms of dry-laid stone used as grave markers or stations for prayer, are also present, two of them abutting the south wall directly and a third standing about fifteen metres to the south-east within the graveyard. A clochan, a dry-stone corbelled hut of a type common in early monastic settings, stands roughly twenty-five metres to the west-south-west and is considered part of the same complex. The curving wall that encloses the whole graveyard may preserve the line of an original early ecclesiastical enclosure, a boundary that could be well over a thousand years old.

The site sits on the north side of the island with views across the water, and the graveyard wall draws together the church, the leachta, the bullauns, and the clochan into a single readable ensemble. Visitors who take the time to walk the perimeter of the enclosure and look closely at the stonework will find that almost every surface repays attention, from the cross-cut into the stone above the window to the shallow worn hollows of the bullauns at ground level.