Reach the Reposoir car park after the hamlet of Mont devant.
(S) From the car park, take the forest road just above the car park (barrier). The track is not fully marked on the IGN map, but it is clear and leads to a place called Le Noubloz. Continue along the track until you reach a crossroads at an altitude of 1304 metres.
(1) Continue along the track until you reach the Col de Bornette.
(2) Leave the track and take the path on the left. For information, the forest road continues after the sign, although it is not marked on the IGN map. Do not continue on this road. Pass the "Les ailes du stream" buildings while continuing on the path. Walk alongside the Chalets du Petet, continue north-east to a crossroads.
(3) Climb up to the right to the escarpment, which is sure to impress with its pretty passage carved into the rock.
(4) This is a distinctive passage that does not present any technical difficulties. However, caution is advised in wet conditions. Continue slightly uphill to reach the Refuge de la Combe (E)
Note: If you are doing a round trip, the return is via the same route as the outward journey.