After the short but athletic ascent through the forest, the reward is incredible: a 360° panoramic view. Look out for the little wooden letterbox almost at the end of the crête du Brisou to leave a note or a drawing in the souvenir book!
Marking : The markings are yellow-green lines (PR).
Equipments : Free car park, Car park,

Delicate passages : Short section between Serre Girardet and Col de l'Allimas requiring caution (gully with significant erosion). During the summer, ewes with guard dogs are present. Follow the itinerary carefully and behave appropriately in the event of an encounter with the herd (bypassing them, keeping calm, speaking calmly to the dogs, etc.).

Admission fee : Free access.

Opening : All year round. Subject to favorable snow and weather conditions.

Step by step description : Start: Park at the end of the Gresse en Vercors ski resort parking lot, just after the bridge. A "Champ de l'Herse" hiking post is located near the bridge, on the right bank. 1) Follow the trail for about 100 m to the first signpost, then turn left towards "Crête du Brisou" (the route passes close to the ski jumps). 2) Follow the track, passing under the Blavet ski lift, then continue uphill until you reach a small plateau, where you turn right to reach the top of the Blavet ski lift. 3) The main difficulty of the hike is ahead of you: the ascent through the forest, which then leads to the mountain pasture and follows the ridge to reach the summit of Les Alleyrons (picnic tables) and the "Crête du Brisou" sign. 4) To go back down, follow the signs for "Serre Girardet" along the ridge to the left. After the plateau, the path descends into the forest. 5) Continue downhill, winding through the forest as far as the "Serre Girardet" post, then turn left in the direction of "Col de l'Allimas" (beware of a small, erosion-prone section requiring special attention). 7) From "Col de l'Allimas", follow signs for "Combe Rouge", skirting the road and then taking the track on the left. 8) From "Combe Rouge", turn left onto the small path leading to the Odyssée Verte, direction "Aux Fayolles". 9) From "Aux Fayolles", take the track on the right towards "Côte Emblay" (just beside the Odyssée Verte dry toilets). 10)At "Côte Emblay", continue towards "Girard". 11) All that remains is to return to your starting point, following the signs for "Champ de l'Herse" along the road to the Gresse en Vercors ski resort.

Area : Trièves