Description of the route

Just before you get to Glacier, in the municipality of Ollomont, take route 4, near the crossroad between the paved and dirt roads, which goes up to Pont, Crottes then continues to By where it turns left near a church, then goes right past the Farinet house. Continue along the road until you reach the alp of By (2050 m). Go back to the trail which intersects the private road several times before leading to Tsa Commune (2304 m). From here it winds several times before leading to below the refuge, which is reached after a section that includes a fixed chain.