Praia das Catedrais (Spanish: playa de las Catedrales, English: Beach of the Cathedrals) is on the northwest coast of Spain. It is the name given by the tourism industry to Praia de Augas Santas (translated from Galician: 'Beach of the Holy Waters'). The beach is located in the Ribadeo municipality, in the province of Lugo (Galicia), on the Cantabric coast, and it lies about ten kilometres to the west of the town of Ribadeo. Its name is derived from its cliff formations.
It has been declared a Natural Monument by the regional Ministry for the Environment of the Xunta de Galicia.