Coetan Arthur (Arthur's Quoit) is a Neolithic burial chamber near St David's Head, Pembrokeshire. The burial chamber was erected around 3000 BC on an exposed ridge inland from a group of hut circles on the headland. The headland is full of ancient remains including signs of ancient field patterns, Neolithic enclosures, and defensive banks and ditches.
Half the fun is getting there as it is part of the circular walk from Whitesands Bay on the St Davids peninsula. Access is by footpath from the Whitesands Bay parking area, along the South West Coast Path. The burial chamber is just east of the path on the north side of St David's Head