The outer enclosure is a promontory fort, a type of earthwork that uses the natural advantage of a headland, sealing off the landward approach with a bank and external fosse, that is, a ditch cut to reinforce the barrier. Pass through the wide entrance gap, cross the causeway over the fosse, and roughly twelve metres further on you encounter the ringfort itself.

The rath, as this type of circular enclosed settlement is known, measures 23.3 metres in diameter and is classed as bivallate, meaning it has two concentric banks separated by a fosse rather than the single bank more commonly seen. The entrance faces north-east and is edged with stone revetments on the inner bank, a detail suggesting the builders were thinking carefully about permanence and presentation at that threshold. On the north-west and south-east flanks, where the promontory drops away sharply, the outer bank and fosse are dispensed with entirely, the steep natural slope doing the work instead. Inside, the ground is uneven and rises toward the centre. Local tradition holds that a souterrain, an underground stone-lined passage typically used for storage or refuge, runs beneath the western part of the interior, though no trace of it is visible at the surface today. What is visible, adjoining the outer bank to the south-west, is a pair of parallel earthen banks roughly eighteen metres long, revetted internally with large stone blocks and oriented downhill toward the shore. The working interpretation is that this structure served as a boat shelter or a house, either possibility placing the people who lived here in close and practical relationship with the sea.

The site lies around 150 metres north-east of a tower house, and the whole complex is substantially overgrown, which partly accounts for how much of it remains well-preserved beneath the vegetation. The layering of functions, coastal promontory fort, enclosed settlement, possible boat shelter, and a rumoured underground chamber, makes this a place where the archaeology itself raises more questions than it answers.