Located at the seafront, Erdeven is a seaside resort who sees its population of 3 000 to 15 000 in summer.
Its three sandy beaches separated by two rocky massifs are from north to south:
Kerminihy, nude beach since the 1970s It is before this beach that the Maltese cargo ship TK Bremen ran aground on the night of December 15 to 16, 2011, at the Joachim storm. Nathalie Kosciusko-Morizet, Minister for Ecology, visited website on 16 December 2011. Bruno Le Maire, Minister of Agriculture, and the Prefect of Morbihan, Jean-François Savy, meet oyster farmers of the Ria of Étel 18;
Kerouriec, family beach (Roche-dryer);
Kerhillio, best known for its flat bottom and waves that allow everyone to be in the water.
The latter continues to the beach of Sainte-Barbe (Plouharnel town). This range extends up to Fort Penthievre on the Quiberon peninsula.
The town of Erdeven (An Ardeven) is part of the Canton of Belz. Erdeven depends on the district of Lorient, the Morbihan department in Brittany