ル・クルゼの天然記念物・トップ11

Viewpoint above the Doubs source with beautiful views through a forest clearing to Mouthe and the Doubs river.

The source of the Doubs River is a powerful karst spring in a heavily karstified area of the Jura Mountains. It lies at an altitude of 937 meters at the foot of the forested, up to 1,419-meter-high Mont Risoux mountain range, which straddles the border between France and Switzerland. The Doubs River rises from a small, approximately five-meter-deep spring basin in a cave in the rock.

The Bief de la Ruine waterfall is located in the spectacular Malvaux Gorge. One of the most astonishing features of this waterfall is the fact that it only comes alive after heavy rainfall or during snowmelt. When it dries, it gives way to the spectacle of the carved stone, revealing the "Creux des Joyaux," a natural cave where the water swirls with varying degrees of vigor, polishing a multitude of limestone pebbles thanks to the force of its current.

waterfalls don't always flow

Very easy to access following the Jura Z between Foncine le Bas and Planches en Montagne, along the SAINE gorges: The color of the water has nothing to envy of that of the lagoons of the islands ;-)

There was no waterfall when we were there but it looks beautiful. The drug is also beautiful.

The Serpentine, (first tributary of the Ain river whose source is located a little higher) forms a small lake near the ruins of a mill. It is from a cornice that this beautiful natural waterfall 15 meters high comes to life when the water level is sufficient.

Very impressive, about 1 km walk from the parking lot nearby, swimming not possible and not recommended