A D-shaped enclosure 9m by 5m, abutting a rock outcrop on its northern side, with the southern edge defined by a grass covered wall. This feature appears to be similar to the one identified by Hague and surveyed by the Ordnance Survey 110 m to the northwest (NPRN 418262). Similar enclosures have also been identified on nearby Skomer Island.

O Davis, RCAHMW, 21/01/13