Le Hourdel is located at the very tip of the Bay of the Somme. The walk goes along the bay and the sea with beautiful views along the way. At low tide there is a good chance that you will see seals resting on the sandbanks. During the second part of the route you walk through the interior and past a pebble quarry back to the starting point.

Walk through the meadows and marshes of Les Huttes, along the way you have beautiful views of the sea, the rolling hinterland and the famous chalk cliffs of Ault.