The route from Wissant beach until the beach Chatelet. Then climb Mont Aux Leux to the cliffs of Gris-Nez. You run along the sea to Cape then down to refueling at the entrance to the Cape Gris-Nez beach. Ascent to the Cliffs, for a journey that takes you back to the dunes end in the Chatelet. The return route is through beautiful landscapes, with new trails and dunes up to the dam of Wissant. The arrival is at the square of Wissant.