Fort-Mahon-Plage is a commune in the Somme department in Hauts-de-France in northern France. The commune is situated on the coast of t…Fort-Mahon-Plage is a commune in the Somme department in Hauts-de-France in northern France. The commune is situated on the coast of the English Channel and endowed with a sandy beach and massive sand dunes, Fort-Mahon-Plage attracts many tourists, especially during the summer and at the weekends. Thanks to investment and the fact the town meets many environmental criteria, the town is officially classified, as a “station balnéaire”.