Park in the Relais car park above Chalmieu.
(S/E) Head almost due south along the wide track. When you reach the Chabottes crossroads, keep right on the track. Continue until you reach a Y-shaped crossroads near the Ruisseau de Montplat.
(1) Take the left fork, cross the stream and then follow the right bank of the Ruisseau des Mulatières. You will reach the confluence of this stream with the Pradin stream.
(2) Continue heading south, passing close to the Chalet de la Motte. Continue climbing, then change direction to head west and reach the Basse du Gerbier.
(3) Turn left again, heading due south to reach the foot of the Aiguilles d'Arves.
(4) Return via the same route to Basse du Gerbier.
(3) Take the path on the left via the Gros Crey and Bon Ventre ridges. Follow the ridges until you reach a tricky section.
(5) Descend to the left to bypass this passage, then resume the ascent to the right to reach the summit of Gros Crey.
(6) Continue by turning right to pass under the summit of Bon Ventre. You will then come to another crossroads below Crey Aigu at the shepherd's hut.
(7) Turn left to reach this summit.
(8) Return to the previous crossroads via the same route.
(7) Turn left onto the previous path, cross the Ruisseau d'Outre l'Eau stream to return to the initial crossroads.
(1) Turn left and follow the same route as on the way there to return to the Relais car park (S/E).