The Culver Hole

A masonry structure about 20m in height, built across a natural cave, with possible evidence of associated quarrying to improve sea access or make land access more difficult. The wall is about 3m thick at base, narrowing as it rises. Axe-dressed limestone masonry with five surviving door or window apertures arranged roughly vertically following the incline of the cave. The lowest opening, about 4m above the beach, is about 1.5m in height, with segmental stone arch, capable of use as a doorway; above this is a smaller and narrower opening of similar form and above that a circular opening about 1m diameter. Another circular opening exists at high level where the natural cleft of the rock opens out, and one straight side of a top opening remains with part of its segmental head. The top of the structure is lost.

The inner face of the wall has a narrow staircase in three irregular flights near the foot and about 30 tiers of nesting boxes in the manner of a dovecote.