Turn left towards the hamlet of Vallon d’en haut on leaving Samoëns towards Sixt to park in the Vallon d’en haut car park.
(S/E) Take the stony track which will lead you to the Chalet du Criou (4x4 track). Follow this track to pass by the Source du Vin Blanc. Shortly afterwards, you’ll come to a crossroads of tracks.
(1) Turn left and begin a series of hairpin bends to reach the Pertuet chalets.
(2) Turn right onto the almost flat path to reach the junction at the Chalets du Trot.
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(3) Turn left onto the wide 4x4 track and head towards the Criou chalets,
(4) Take the path that goes round the trough on the right to reach Barme.
(5) Follow the red markings from here to the summit of the Aouille de Criou.
(6) Descend via the same route to the Chalets du Trot.
(3) Turn left and continue down the winding path to reach the wide track at the Bouttiay chalets.
(7) Follow this track and you will then reach the junction you passed on the way up.
(1) Follow the route you took on the way there in the opposite direction to return to the Vallon d’en Haut car park (S/E).