그로부아‬에서 가장 멋진 ‪5‬개의 천연기념물

an impressive rocky landscape right on the bike path

The blue spring is a Vauclusian spring which emerges in an oval basin. Its depth is nine meters. Divers explored the submerged gallery over a length of 220 meters before stumbling upon a narrowing which was not crossed. The gallery is made up of two siphons. The turquoise blue waters give it its name.

On the EuroVelo 6 along the Doubs and Rhine-Rhône Canal to Baume-les-Dames. Beautiful scenery, excellent cycle path, pleasant rest stops. More information: de.eurovelo.com/ev6/france

Magnificent panoramas at an altitude of 455 meters. We can also see the Babre slot nestled in the Lavenne woods.

As the name suggests, this water is crystal clear sea blue. Is it worth visiting and maybe taking a dip?

High grotto with wonderful limescale deposits - accessible via a metal ladder even without equipment. The grotto does not lead deep into the rock, the daylight is sufficient, you do not need a flashlight. It is freely accessible to everyone.

At the top of these cliffs, the Saut de Gamache belvedere overlooks the Doubs valley. It allows you to discover Baume-les-Dames nestled between the hills and the village of Esnans below.

The cave is listed as a real classic among speleologists. Through a very small shaft entrance of just 30 x 50 cm. you have to abseil about 7 meters ... Then the next 18 meter deep shaft. A final climbing step, about 5 meters lower, ends in an impressive and large hall with beautiful stalactite columns.