Equipments : Car park,

Admission fee : Free access.

Opening : All year round.

Step by step description : Start at the Claix village sign, above the town hall square. From here, climb the road towards Allières. Pass through the narrow streets of old Claix, then cross the locality known as La Croix. In Allières, turn right towards La pissarde. The cul-de-sac leads to a track which opens up a few hundred metres further on to the Pissarde path on the left. At the intersection with the road at the Savoyères sign, take the left-hand path towards Le Peuil. From Le Peuil, follow a track to reach a path with a steeper gradient. Stay on the signposted path towards Cossey. At the hamlet of Le Gampas, take the right-hand path down to Cossey, Claix's oldest hamlet. Turn right at the Rif stream. Admire the beautiful view of the Alps and the sun warming this slope; the scent of pine trees may remind you of Provence. After crossing this locality, the path leads to Bouveyres. Pass through the hamlet of Penatière before turning right to reach Cossey and its historic chapel. From here, turn right towards Les Cimentiers. The first road on the left leads to the crossroads with the D106, turn right for a few metres to find the Chemin des Cimentiers on the left. At the intersection, turn right towards Les Cimentiers. The path runs along the edge of the Comboire rock forest. Cross the Cimentiers footbridge and continue straight ahead to reach the hamlet of La Balme. Turn right to join a road that leads back to Claix via Les Perrouses. NATURAL HERITAGE: THE PEUIL PEAT BOG The 57-hectare Peuil peat bog is a unique and original site in the Vercors, as the karstic nature of the massif does not generally favor this type of environment. It is one of the few wetlands in the massif, and a precious ecosystem that must be preserved. Its cliff-side location makes it an undeniably attractive landscape, but it also boasts a wealth of species typical of peaty environments. Floristic richness is remarkable, with no fewer than 219 species recorded.

Area : Grenoble-Alpes Métropole