



Fort Louvois
Bourcefranc-le-Chapus
Walk across the seabed at low tide, or catch a boat when the water rises. This 17th-century Vauban fort guards the Marennes basin with medieval flair: horseshoe walls, a drawbridge, and views that shift with the tide.
17th-century military fortress
Tidal causeway access
Vauban architecture
Walkable at low tide
Tips
🌊"captivating to look at the tide coming and covering the path"
🚶"no barriers around things so you can get up close and personal"
⏰check tide tables before you go
Fort Louvois
Bourcefranc-le-Chapus




Walk across the seabed at low tide, or catch a boat when the water rises. This 17th-century Vauban fort guards the Marennes basin with medieval flair: horseshoe walls, a drawbridge, and views that shift with the tide.
17th-century military fortress
Tidal causeway access
Vauban architecture
Walkable at low tide
Tips
🌊"captivating to look at the tide coming and covering the path"
🚶"no barriers around things so you can get up close and personal"
⏰check tide tables before you go