No standing walls, no earthen bank rising from the grass. What marks the site out is essentially a shadow, a penannular soil mark, meaning a near-complete ring visible only from the air, where centuries of differential growth or drainage have preserved the outline of something that has long since lost its physical presence at ground level.

The enclosure measures approximately 61 metres across its northeast to southwest axis, a scale consistent with a defended farmstead or ringfort of early medieval date, though the site has not been formally excavated or closely dated. On the ground, the most a careful observer might notice is a slight undulation running from north around to west-southwest, the faintest suggestion of a former bank or ditch. The aerial photograph that first documented the soil mark was taken by Dr D.D.C. Pochin Mould, a scholar and aerial photographer whose work captured many such ghostly outlines across the Irish landscape before they were lost to ploughing or development. The site is recorded in the Archaeological Inventory of County Cork, Volume 2, published in 1994.

Because so little is visible at surface level, the site rewards a particular kind of attention. The setting on level ground, with the harbour opening out to the south, gives some sense of why this location might have been chosen, commanding a broad outlook without demanding a hilltop position. The soil mark itself is best appreciated through historical aerial photography rather than a visit in person, since the difference between the enclosure and the surrounding pasture is unlikely to register underfoot.