The route from Wissant beach until the beach Chatelet. Then Ascent of Mont Aux Leux then flat part to the Blockhouse Haringzelles. Then head to the cliffs Audresselles then to the Gris Nez. You walk along the sea to the Cape and 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 du Chatelet. The return is by beautiful trails follow new dunes to the dam of Wissant before arrival in the square.