Martins Haven Bay and Beach is a small and shingle beach located on the Dale Peninsula, with view across the St. Bride'Bay, in Pembrokeshire, Wales. It stands within the Skomer Marine Nature Reserve. It is known for scuba diving and grey seals can be spotted on the rocks. The beach is rocky and partially sanded. It can be accessed via a path from the car park. The beach is frequently used for lauching boats heading to Skomer Islanf Nature Reserve. It has been granted the highest range of bathing water, Green Coast Award and Seaside Award, in 2010.