This promontory fort originally had a series of three rampart banks and three ditches without inter-space. Only one ditch and bank are now preserved. The fort has a diameter of approximately 760 metres (200 feet). It utilises steep, rock-faced drops to the sea to its northwest, west and southwest sides, with re-entrant inlets to the southeast and northern sides. The narrow strip of land between these two inlets is at the northeast side of the fort, and here a series of banks and ditches were constructed, which are now much eroded and mutilated.


The landward defences are stronger than normal probably because, unlike the majority of this type of promontory fort, the interior is lower than the surrounding ground. It had three banks A, B & C. The outer bank A has ditches on both sides and the inner bank C has a weak almost completely silted up ditch on its outer side. There is a 3.3 m wide causeway across the ditch between A and B. Bank A was partly destroyed to the north by the erection of a hut. It has an upper width of 2.9 m with an inner height of 1.6 m and an outer height of 1.1 m. Its outer ditch is 0.3 m deep from the outer lip. Bank B is 2.9 m wide with an inner height of 1.4 m and an outer height of 1.1 m. Only much ploughed down fragments of bank C remain. Within the grass covered interior no trace of habitation was found.