Fragments of a Roman vase and jug have been found on the beach. A 1797 map showed what was described as the ruins of "Cley Chapel", although it is more likely that they belonged to a barn.[2] A 1588 map showed "Black Joy Forte", which may have been intended as a defence against the Spanish Armada. There are a number of post-medieval earthworks, presumably sea defences, and pits which may have been associated with salt-making.[3]