Fort Du Guesclin

Fort Du Guesclin sits on a granite island connected by a path that becomes accessible during low tide. The structure features stone buildings with multiple levels, narrow corridors, small windows, and ramparts designed for defense against coastal threats.

The fort began its existence in the early medieval period and underwent several reconstructions following damage from conflicts and nature. Its current form largely dates to the 18th century, when it was rebuilt to serve again as a strategic coastal defense post.

The fort takes its name from the Breton military commander Bertrand du Guesclin and served as a symbol of maritime defense for the region. Today, the stone walls tell the story of its role guarding the coast against invaders from the sea.

Access to the island depends on tidal cycles and requires planning before your visit. Check tide schedules in advance, as the window for crossing is limited and waiting times can be considerable.

The composer Léo Ferré lived here during the 1960s and created music within this isolated setting. His time on the island influenced his work and made the fort an important location in French musical history.

Location: Saint-Coulomb

GPS coordinates: 48.69667,-1.89611

Latest update: December 6, 2025 16:03