Medieval defended promontory. This substantial, well-defended Iron Age promontory fort was reoccupied duriing the Norse era, when a rectangular building 12.5m by 5m was constructed. A narrow stone bench against the south wall would have served for sitting and sleeping.


No evidence of a hearth was found, implying that the structure was not permanently occupied. The limited evidence for domestic use, coupled with the lack of a hearth, has led to the suggestion that the building formed part of a 'watch and ward' system of coastal defence (which continued until at least the early 17th century), or may have policed a coastal beach market.