Dunes de la Slack
A coastal dune nature reserve between Wimereux and Ambleteuse, where a wooden boardwalk crosses rolling dunes to the beach.
The Slack Dunes are among the best-preserved dune systems on the Opal Coast. The protected area has marked trails and wooden boardwalks that cross rolling dunes and wetland hollows to the open beach. At its northern end are the Slack estuary and Fort Mahon. Dune plants such as orchids bloom in spring and summer, and migratory birds pass through in autumn. A loop takes about 1 to 2 hours. It is free, and visitors should stay on the trails to protect the vegetation.
Opening hours
All day
Nearby sights
- Fort Mahon, Ambleteuse
- Wimereux
- Audresselles
- Atlantic Wall Museum (Batterie Todt)
- Column of the Grande Armée
- Nausicaá, Boulogne-sur-Mer
- Basilica of Notre-Dame, Boulogne-sur-Mer
- Château-Musée de Boulogne-sur-Mer