Porthmelgan is a remote secluded cove situated between St David's Head and Whitesands Bay. It is sandy at low tide, flanked by high cliffs with a small stream flowing across the beach, and looks out towards Ramsey Island and the Bishop & Clerks reef. At low tide there are caves and rock-pools to explore. Rip currents occur in surf conditions.
Behind the beach is the rocky peak of Carn Llidi which has good views to St David's and the north Pembrokeshire coast. The nearest parking is at Whitesands. Dogs are allowed at all times.