These coastal enclosures, built by cutting off a headland with earthworks on its landward side so that the sea does the defensive work on the remaining flanks, are found at intervals along the Irish coastline, but this one is unusually layered. What survives here is not a single line of defence but at least three, arranged one behind the other as the headland narrows toward the sea.

The innermost enclosure, a roughly triangular area measuring about fifteen metres across at the westernmost point, is defined by a bank of earth and stone averaging 1.2 metres in height, with a shallow outer fosse, a defensive ditch, running alongside it. About twenty metres further inland, a second straight bank and fosse survive as a vegetation mark, built along a low SW-NE ridge that crosses the headland. A further ninety metres to the east, two more parallel banks and possibly two additional fosses are also traceable as crop and grass marks rather than standing earthworks. Together, the enclosed area would have stretched roughly 125 metres by 160 metres. The interior, for all this elaborate outer architecture, is largely empty; there is a small depression near the northern cliff-edge, but no obvious structural remains beyond it. A bivallate ringfort, meaning one encircled by two concentric banks, sits on higher ground 170 metres to the east, looking down over the whole arrangement.

The multiple lines of banks suggest the defences were added to or rebuilt over time rather than conceived as a single project, though without excavation it is impossible to say when any of them were constructed or how long the site was in use. What is clear from the ground is that whoever occupied this headland considered the landward approach worth controlling very carefully, even on a low and otherwise unremarkable stretch of the Clare coast.