A pretty hike of difficult difficulty in the Mont de Grange reserve, a Natura 2000 reserve and game reserve, where 300 hectares of nature are preserved, a refuge for remarkable wildlife: chamois, mouflons, roe deer, stags, wild boar, marmots, golden eagles, capercaillie, etc., and a varied flora with some rare species: alpine columbine, Martagon lily, Paradise lily, bear-eared primrose.

From Plan des Feux, follow the forest track towards Louennaz, then head for the refuge de Trébentaz.

The refuge is a stage on the GR5. You can enjoy an exceptional panorama during a well-deserved lunch break!

From the hut, take a short path to the "Altitude 2,020 m" sign, the highest point of the route and the best view of the Swiss Alps. The descent is via the Chalets d'alpage du Folliet through a combe. Return in the direction of Plan des Feux.

Departures from the village: you can start the hike from Crêt Béni or Le Moulin. Allow an extra 1h45 walking time.
Marking : Departmental markings called P.D.I.P.R. on beige metal panels with green lettering.
Equipments : Picnic area, Parking,

Admission fee : Free access.

Opening : From 01/06 to 30/09. Accessible except during snow and depending on weather conditions. Please check with the Tourist Office for the latest information on access conditions. This route is usually suitable for strong walkers during spring, summer, and autumn, except in adverse weather.