Dunes de la Slack is a beautiful nature reserve on the Opal Coast, between Wimereux and Ambleteuse. The area is named after La Slack, a river that flows through the …
Wonderful hiking trail towards Cap Gris Nez with great views. In clear weather, the British coast is easy to see.
The trail parking lot on the outskirts of Audresselles is ideal but in the season quickly full as relatively small.