where is the opal coast in france?
Seaside resorts and beaches on Côte d'Opale in France - the most important destinations. Côte d'Opale (Opal Coast) stretches north from the Bay of Somme (at Berck) to the Belgian border. The northern part of Côte d'Opale, along the North Sea, is also called Dunes de Flandre.