Site of headland and passage in bottom of estuary, La Roche-Derrien, old fortified settlement, invite you to discover its beauty. Described as the place of exchange between "Argoat", the inland, and "Armor", the costal area, the city was formed throughout generations by communities of men and women confronted with a turbulent history. Creative and needy, they printed their everyday life in the memory of the places and its inhabitants.