Hiking route connects Lac de Bellefontaine and Lac des Mortes

A circular hiking route traverses the area between Lac de Bellefontaine and Lac des Mortes, which sit on the administrative border of the Doubs and Jura departments in France. The trail offers views near the Swiss border, specifically at locations such as Roche Bernard, Le Gît de l’Échelle, and Roche Champion.

The route begins at a parking area near the villages of Bellefontaine and La Chapelle-des-Bois. It involves walking through peat bogs and crossing a footbridge that marks the boundary between the two departments.