Start: Take the D1506 to Argentière. At the entrance to the village, after the railroad bridge, turn right towards the railway station car park.
(S/E) With your back to the station, take the footpath on the right to reach the right bank of the Arve.
(1) Go left up to the bridge over the river. Walk past the church to reach a crossroads.
(2) Continue straight ahead, passing several cul-de-sacs on the left and right, and the Protestant church, to reach the bridge under the railroad.
(3) Continue over a small bridge up to the next junction. Go straight on, turn left into Chemin du Planet and begin a fine ramp. At the crossroads, bear left and emerge next to a paravalanche in a meadow offering a wide open view of the valley and Mont Blanc. Continue on to the Hôtel du Planet overlooking Argentière.
(4) Turn right at the end of the car park, signposted Le Tour. Take a carriage road which becomes a footpath. At the Le Tour signpost, turn left down to the river and join a wide path.
(5) Continue right on this path, which crosses a footbridge over the Bisme and leads to a crossroads of paths.
(6) Continue straight ahead, crossing the Ruisseau du Picheu and reaching the top of the ski run through a meadow dotted with coppice and rocks.
(7) Turn left onto the front moraine, along a well-marked path. Cross between the ski lift pylons to reach the entrance to the meadow and the Charamillon gondola lift.
(8) Turn left, then after the bridge over the river, stay on the right-hand side of the parking lot to reach the trail junction at the "Aiguillette des Posettes et Montroc" marker.
(9) Continue left towards Tré-le-Champ. Begin a long traverse through the forest on a good balcony path. Turn left before Montroc below, passing the isolated Chenavier chalet above the village to reach Tré-le-Champs.
(10) Continue as far as the stream running down from the Col des Montets. Turn left onto the small road, which you then leave on the left to follow a wide track over the stream onto the main road.
Follow the road to the left, then fork left onto the small road leading down to Pont Boveray on the Arve. Cross the bridge and turn right onto the Route d'Argentière along the Arve. Pass the cemetery and rejoin the crossroads you passed on the outward journey.
(2) Turn right and follow the same route as the outward journey to return to the SNCF station car park (S/E).