Landévennec

Shortly before entering the roadstead of Brest, the river Aulne forms a bend around the Île de Térénez then the pointe de Pen Forn near Landévennec, where there is a 10 m depth of water regardless of the tide and with the high surrounding hills blocking the winds and thus keeping the water calm. Here is sited a ship graveyard for civilian but particularly naval vessels. The only difficulty is the Capelan bank, to the south of Logonna-Daoulas, where the depth is less than 5 m - this bank has to be passed to reach the base and thus prevents very deep-draught vessels from reaching it.

Wikipedia