Start: Access to Argentière is via the D1506 from Chamonix (9km). Park in the Argentière station car park on the right just after passing under the railroad bridge.
(S/E) From the car park, follow the main street to the right for 150m and find the Chemin des Grands Bois on the left at the Hôtel-Restaurant de la Couronne.
(1) Follow this beautiful path, keeping to the right at each junction for 1100m.
(2). Go straight ahead and climb for 650m to the crossroads.
(3) Go straight on and climb for another 600m, staying left at the next two forks. Continue up to Aiguillette d'Argentière 1895m.
(4) Continue uphill for 850m to the crossroads.
(5). Go straight on, turning left at the next intersection. Climb to the right at the fork, skirt one of the Chéserys lakes and continue to the refuge.
(6) Continue to Lac Blanc.
(7) Skirt the lake and follow the path down to a crow's-foot.
(8). Turn left and continue downhill, keeping right at every junction until you reach Lac de la Flégère 2027m.
(9) Turn left and descend to a large track.
(10). Continue on this big track, passing under the Chavanne chairlift and continuing down to a path which shortens the laces of the track.
(11) Fork right and find the end of the track, which takes you behind the Flégère cable-car station.
Turn right behind the station and, at the end of the road, you'll find a crow's-foot.
(12) Take the left-hand path and go down, first left, then right, until you reach a large track. Turn right and descend this track to the bottom of the valley.
(13). Opposite, take a large track which takes you along the Arve to a second bridge over the torrent.
(14) Before the second bridge, take a path to the right, then immediately turn left. Follow this path along the Arve until you pass under the Flégère cable car and arrive at the car park behind the cable car departure station.
(15) Cross the car park and go straight on to the route des Praz. Cross this road and continue straight ahead on Rue de la Chapelle towards the D1506 roundabout. Go around it to the right and take Rue des Gaudenays opposite.
Turn right into Impasse de la gare, and you'll reach Les Praz station after 100m (S/E).