The St-Malo ramparts' northern stretch looks across to the remains of this former prison, built by Vauban in 1689. Standing atop a rocky outcrop, the fort can is only accessible at low tide, so check online or with the tourist office for tour times.
Sito Webwww.fortnational.com
OrariEaster, Jun-Sep & school holidays, hours vary
Prezzoadult/child €5/3