Refine your search for walks in Slack (fleuve)
Slack (fleuve) walks
Cap Gris Nez from Ambleteuse
Visorando Member
12.13 mi
+420 ft
-423 ft
5h 55
Moderate
Departure from Ambleteuse (Pas-de-Calais)
A loop from the old fort of Ambleteuse to Cap Gris Nez: go along the cliffs by the sea and return inland via the remains of blockhouses.
Dunes of the Slack river at Wimereux
3.76 mi
+167 ft
-171 ft
1h 50
Easy
Departure from Wimereux (Pas-de-Calais)
A beautiful walk taking you through several natural environments: dunes, forests, beaches and cliffs.
Framezelle (Audinghen) - Boulogne
13.64 mi
+377 ft
-499 ft
6h 35
Difficult
Departure from Audinghen (Pas-de-Calais)
The coastal path winds its way through the countryside and past magnificent cliffs, with a few breaks after passing through Audresselles, Ambleteuse and Wimereux. To round off the day nicely, make the effort to climb up to the old fortified town of Boulogne.The route follows theGR® 120, which has been rerouted as the Sentier des Crans has been closed.
⚠️ 16/06/2026: route modified to follow the GR®120 diversion. From Cap Gris Nez to Audresselles, it no longer passes through Les Crans.
