The estuary of the Somme surprised by its size: about 70 km². The Bay of Somme is fifteen kilometers deep and 5 km wide, from the point of Hourdel Crotoy.
Its bewitching light has inspired many painters and writers Delacroix, Degas, Corot but Colette, Jules Verne, Victor Hugo, Alfred Manessier and many more ...
The Somme Bay knows two low tides and two high tides per day. 12 Hours separate about every low tide.