Enclosed by a wall erected by the Office of Public Works in the late nineteenth century, the site holds the greater part of a monastic complex traditionally known as na Seacht Teampaill, the Seven Churches. The name is something of a misnomer; not all of the structures are churches, and not all seven fall within this particular enclosure. Still, what survives here is a dense layering of early Christian activity in a remarkably compressed space, roughly seventy-seven metres along its longest axis and fifty-six metres across.

At the centre of the complex is Teampall Bhreacáin, known in English as Temple Brecan, the largest of the churches on the island and dedicated to Saint Breacán, an early medieval figure associated with the site. Alongside it stand several associated domestic buildings, the kind of ancillary structures, storage spaces, cells, and work areas, that give a clearer picture of monastic life as an organised, daily practice rather than a purely spiritual one. Scattered across the graveyard are four leachtaí, which are low, rectangular stone cairns or platforms used as commemorative monuments, often associated with particular saints or patrons. There are also numerous cross-slabs, flat stones incised with crosses and sometimes inscriptions, which served as grave markers or devotional objects and are among the most characteristic survivals of early Irish monasticism. Most of the burials cluster to the north-east, east, and south of the church, though some were made within the church building itself and even within the domestic structures, a pattern not unusual in early medieval Ireland, where the boundaries between sacred and functional space were often deliberately blurred.