What survives of it amounts to little more than intermittent traces of a loose-stone wall, yet those fragments once described a roughly oval boundary some 72 feet, or just under 22 metres, across. It is the kind of structure that only makes sense when you know what to look for, and even then it asks a certain patience of the observer.

The enclosure was recorded by Kilbride in 1868, who noted both the oval plan and the loose-stone construction, though even at that relatively early date the wall was far from complete. Westropp also noted the site in 1895, placing it within a broader survey of Aran monuments. Associated with the enclosure are two clochans, the beehive-shaped dry-stone huts found across the early Christian landscapes of the west of Ireland, built without mortar and corbelled inward at the top to form a rough dome. The combination of an enclosing wall with clochans suggests this may have been a small monastic or ecclesiastical precinct, a type of arrangement common on the Aran Islands where early Christian communities made use of whatever stone the land offered. The name of the townland, Cill Éinne, preserves the Irish word for a church or ecclesiastical cell, lending further weight to that reading, though no written record ties the enclosure explicitly to a named foundation or a specific community.

The site sits close to the shoreline among the dunes, which means the ground shifts, and the relationship between the surviving stonework and the original boundary can be difficult to read on the ground. The clochans associated with the enclosure give the clearest sense of what once stood here, their corbelled construction having fared somewhat better than the loose perimeter wall that once gathered the whole ensemble into a single, purposeful place.