So where's the sea at Ars-en-Ré? The answer is: all around you.
Ars-en-Ré was once an island, as you can see from its rugged coastline. In the West, La Grange beach, small and perfect for families, allow bathing at high tide, though please be aware that it is unsupervised. The jetty was once used for the unloading of sardines from the nearby canning factory.