The small River (ria) Étel divides the almost rectilinear coast separating the Quiberon headland from Lorient. Its waters, rich in shellfish and fish, extend for around fifteen kilometres inland before reaching the sea. However, its jagged banks stretch out for some 100km! It boasts innumerable inlets and islets, strewn with chapels and fountains. It is a pleasure to lose oneself in the maze of roads that link each corner of the islands and headlands.