Park at the car park in the courtyard of Château d'Hardelot (depending on the route) or Rue de la Bergerie.
(S/E) From the castle car park, take the small road on the left called Rue de la Source.
(1) Find the entrance to the path on the right and go through the gate to enter the Écault forest. Leave two paths on the right.
(2) At the third, go straight ahead on the concrete path.
(3) At the crossroads, go straight ahead and pass to the right of the Chemin des Juifs stone memorial.
(4) At the fork at the entrance to Dune d'Écault, bear left. Follow the path through the dunes to the sea.
(5) Once on the beach, follow the coastline to the right for 1.3 km, until you reach the mouth of the Warenne river.
(6) Turn right and find the little path that runs alongside the river. Cross the bridge and go up to a staircase. To the right, take the GR® 121 back to the heart of the dunes.
Turn right and continue to the viewpoint.
(8) Begin a slight descent and, at the intersection of several paths not far from point 4, take the one on the left, then turn right some 50m further on. Wind through the forest, continue straight on and at the crossroads, turn left onto the Sentier de la Bécasse.
(9) At the fork in the forest, turn right onto the path that leads back to the clearing.
(2) Leave the site almost opposite on the left.
(1) Turn left onto Rue de la Bergerie to reach the car park in the château courtyard (S/E).