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.
The coastal path from Bray-Dunes to Étaples
105.81 mi
+2,001 ft
-1,978 ft
8 days
Difficult
Departure from Bray-Dunes (Nord)
This beautiful route allows you to discover a varied coastline with vast sandy beaches, pebble beaches and a long stretch of cliffs between Calais and Boulogne. It also offers short detours away from the coast into dune nature reserves.This multi-day hike will appeal not only to lovers of remarkable natural sites, but also to enthusiasts of architectural heritage and birdwatchers (during migration periods).
Walks near Slack (fleuve)
From Wissant to Audinghen – Cap Gris Nez
4.61 mi
+180 ft
-167 ft
2h 15
Easy
Departure from Wissant (Pas-de-Calais)
A lovely walk from Wissant to Cap Gris Nez along the cliffs.
You’ll need to leave a car in the Cap Gris Nez car park for the return journey.
Calais - Framezelle
15.42 mi
+761 ft
-643 ft
7h 45
Difficult
Departure from Calais (Pas-de-Calais)
This superb stage alternates between beaches and cliffs and passes through the remarkable sites of Cap Blanc-Nez, Petit Blanc-Nez and Wissant Bay, ending at Cap Gris-Nez.
Boulogne – Hardelot-Plage (Neufchâtel-Hardelot)
9.67 mi
+443 ft
-449 ft
4h 50
Moderate
Departure from Boulogne-sur-Mer (Pas-de-Calais)
After two stages along the cliffs, the trail, once past Le Portel, returns to beaches fringed by dunes, with a few diversions: the walk through Equihen-Plage and the Dune Trail before Hardelot-Plage.
Make the most of this short stage to visit the walled town of Boulogne before setting off.
The route follows theGR® 120.