50.388°N -3.5°WSt. Mary's Bay is a sand and shingle beach located near the fishing town of Brixham, Devon, England. It was originally called Mudstone Bay because of the local mudstone bedrock of the cliffs.[1] It has footpath access from a car park and can be reached as a detour from a walk along the coast path. There is a viewpoint on Sharkham Point above the beach. Fossils can be found here.