Park in the Lac des Corbeaux car park.
(S/E) Walk up the road on the right-hand side of the restaurant for about 20 metres.
(1) Take the path that climbs to the right (marked by a sign with a yellow ring) for about 700 metres until you reach the forest path.
(2) At the path, turn right and continue straight ahead until you reach Roche du Lac. Please note that before you reach this viewpoint and at the viewpoint itself, the rocks can be slippery in wet weather. There is a handrail attached to the rock, but caution is advised.
(3) At the Roche du Lac viewpoint, take the opportunity to take some photos, then, with your back to the lake, take the path that climbs up in front of you. At the top of the climb, turn right and you will soon reach a fork in the path.
(4) Turn left and descend to a track.
(5) Follow it to the left and you will reach Croix Louis and the refuge chalet of the same name, located south of Croix Louis.
(6) At Croix Louis, turn back (or go to the refuge for shelter or lunch) and continue for 1600 m on the forest road to reach the stele of the small pass of Mansuy.
(7) At the crossroads, continue straight ahead and follow the path downhill to the starting point (S/E).