Les Traversées de Tatihou is a unique world music festival held annually in the Val-de-Saire area of Normandy, where the schedule is dictated by the tides. Festival-goers are invited to walk across the seabed at low tide to reach Tatihou Island, where they can enjoy concerts under a marquee, with additional performances taking place in the village of Saint-Vaast-la-Hougue.