Petit Bé, Military fort on tidal island in Saint-Malo, France
Petit Bé is a fort on a tidal islet a few hundred metres off the ramparts of Saint-Malo, built of rough grey-brown masonry. A horseshoe-shaped battery with 19 gun embrasures faces the sea, while two loopholed half-bastions flank the landward entrance a few metres above the rocks. Inside are a three-level barracks building, a rainwater cistern and a lower platform.
Built in 1689 under engineer Siméon Garangeau's direction, the fort was part of Vauban's system to defend Saint-Malo from sea attacks. It served as a critical position to prevent enemy ships from approaching the harbor.
The island's Breton name, Nebeut Bezañ, is still used locally alongside the French Petit Bé. The fort's cistern, emptied of rubbish during the restoration begun in 2000, now collects storm water from the rebuilt roof of the barracks. Some embrasures hold period cannons placed under Alain-Etienne Marcel's direction.
Access depends on tide schedules since the fort is only reachable on foot from Bon-Secours beach during low tide. Visitors should check tide times before planning a visit to ensure there is enough time for a safe crossing.
The fort's landward entrance sits a few metres above the rocks, flanked by two half-bastions pierced with loopholes for muskets so defenders could fire on anyone trying to scale the walls. Plans for an outer demi-lune in front of the gate were drawn up but never built.
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