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Departure from the free car park, Quai de la République, in Le Tréport.
(S/E) Facing the outer harbour, turn left. Take the tarmac path leading to the lock, which you must cross. Turn right and follow the edge of the outer harbour for 200 metres. Cross the street to climb the Rampe du Musoir.
(1) Do not turn left, but head straight ahead towards the Place de l'ancien Hôtel de Ville. Climb the cliff stairs (GR®21) to the top (386 steps). Continue straight ahead, climbing the 12 steps, which are the remains of the steps of the Hôtel du Trianon, destroyed in 1942. Take the gravel path.
(2) At the viewpoint, be careful: do not continue on the path opposite, as the cliff is regularly receding and safety can no longer be guaranteed.
Reach the road and turn right onto the tarmac. Continue straight ahead for 1700m. Descend towards Mesnil-Val.
At the first car park on the right, enjoy the magnificent view of Mesnil-Val beach. Then, immediately on the right, go down the few steps leading to the square and turn right between the lawns to go down the steps, which are in poor condition, towards the beach.
(3) Walk back up from the beach along the road for 100 metres and take a path on the right, accessed via a few steps. During the climb, don't forget to turn around to admire the view.
(4) At the top of the path, after the wooden chicane for hikers, ignore the two roads on the left and take the Chemin des Douaniers opposite, a tarmac path that continues along Rue du Chewington. At the roadblock, turn left onto Rue Alise-Sainte-Reine. Turn right onto Rue Jeanne-d'Arc, pass five streets on your right and turn right onto Rue Louise. You will find Rue du Chewington on your left.
(5) After the square, turn right and follow the red tarmac road downhill. Turn right then left to follow the beach along the D222.
(6) Cross the bridge over the Yères. After 120 metres, turn left onto Chemin des Soupirs and continue to the end (you can take the pavement to Basse-Rue), ignoring the stairs on the right in the middle. Turn left down Basse Rue. After the first right-hand bend, continue for 150 metres.
(7) Turn left onto a path leading to a property at the end of a large grassy field. Pass the two entrance pillars ( hikers are allowed for 40 metres) and turn left onto a path to cross a concrete bridge over the Yères. Turn left, then right onto Rue du Parc. Turn left onto Rue du Casino, which becomes a footpath.
(8) Go up to the top of Avenue de la Belgique on the right, which then becomes Avenue d'Arras, which turns left.
(9) At the three-way junction, turn right and continue until you reach Rue de Flocques on the right, which turns left at the top, then right, ending on the left at Rue Françoise.
(10) Turn right onto Rue du Tréport, which descends into Mesnil-Val.
(11) At the bottom of the hill, turn left onto Rue de la Mer, then immediately right onto Avenue du Val Coquet. Turn right onto Avenue du Val Fleuri, which ends at a path. In the plain, leave the path on the left and continue until you reach a crossroads, where you turn right.
(12) When you reach Rue de Fermes, take the path on the left for 900 metres and at the next crossroads, turn left. Continue straight ahead on Boulevard du Parc. Cross Boulevard du Calvaire and go down the Escalier des Alliés staircase opposite.
(13) Turn right and then immediately left to go down Rue Saint-Michel. At the stone cross, continue straight ahead on Rue de Paris.
(1) Go down to the right towards the port and head towards the lock that allows you to cross the Bresle. Take the path on the left leading to the starting car park (S/E).
Visorando member
Easy 
Association / Club / Walk leader
