Park in the car park overlooking Lac Saint Guérin.
(S/E) Descend towards the dam, cross it, then take the beautiful track that runs along the western shore of the lake to the end.
see the remarks in the Introduction regarding the prohibition of walking along the western side of the lake.
Turn left, towards the east, to follow the lake. Further on, leave the GRP® Tour du Beaufortain on your left. Cross the footbridge.
(9) Continue along the lake until you reach a fork.
(1) Take the route that climbs to the Col de la Louze, cross the Ruisseau de la Louze several times, and reach the Col de la Louze.
(2) Take thefirst path that climbs up to the right towards the Grand Mont. Climb diagonally up the Cornillon mountain, with a few sections where you will need to use your hands. Reach the ridge, switch to the other side and, after a short descent, reach the bottom of the valley until you see the sign for Les Marlhonnays.
(3) Note: see chapter: Practical information.
Climb up to the left, following the yellow markings, which are not always easy to see due to the numerous cairns.
Reach the Grand Mont via a very rocky route, often through a jumble of boulders and scree.
(4) Descend by the same route to the previous crossroads. The path is more visible on the descent as you are above it.
(3) Turn left to descend and reach the Col de la Forclaz via a beautiful balcony path.
(5) Turn into the valley, where the route runs more or less parallel to the Col de la Forclaz ski lift. Keep the Refuge de l'Alpage in the distance and continue to the bottom of the valley.
(6) Leave the refuge behind and turn right towards the Chalets des Rognoux. Cross a small stream, then climb back up the ridge and descend into the mountain pasture towards the Chalets des Rognoux, which are still in use. Go around the buildings on the right and you will reach a nearby intersection.
(7) Descend through the mountain pasture via a few large hairpin bends and you will soon come to another intersection, which is the alternative route of the Tour du Beaufortain.
(8) Descend to the right into the forest on a path that is difficult to walk on due to the many exposed roots. Return to the initial crossroads you passed on the way up.
(1) Turn right to follow the lake on the track leading to the Himalayan footbridge.
(9) Cross the footbridge and follow the lake on its eastern shore to return to the Lac de Saint-Guérin car park (S/E).