This listed spa town and tourist destination also boasts the Station Verte de Vacances seal of approval awarded to resorts offering nature holidays. The seaside district of Mers is the only officially-recognised “remarkable heritage site” on the coastline of France.
It is the southern gateway to the Somme Bay Grand Site de France.
The Grand Site boundary was extended to include Mers-les-Bains in 2019. This certification label aims to preserve and promote the landscape through measures such as the creation of new loop trails and cycle-path sections (EuroVélo 4 greenway) for walkers and cyclists to discover.
The organic limestone cliffs (90 metres high and about 2.5km long), offer a plunging sea view from the top and you can see the nearby Somme Bay when the weather is clear. Every day, the coastal path is explored by seasoned hikers heading for Bois de Cise, Ault, Onival, and the Hâble d’Ault nature reserve.
There are pleasant walks to be had at the bottom of the cliffs too, and the beach attracts windsurfing enthusiasts as well as beach foragers.