Take the Aiguille du Midi cable car and get off at Plan de l’Aiguille, either directly from the valley or after ascending to the Aiguille du Midi.
(S) Set off to the left of the Plan de l'Aiguille restaurant and take the path heading north-west.
(1) After about 300 m, turn right and continue along the path which winds downhill, then uphill. Keep heading north-east, ignoring the paths to the left and right.
(2) Ford the Blaitière torrent and continue straight on to a junction.
(3) Ignore the path on the left, go straight on and cross the Grépont stream. Then continue straight on until you reach a fork, 1 km further on. At the 2098m mark, ignore the path on the right.
(4) At the next junction, there are two options:
- Continue straight ahead on a narrow, overhanging path to the Montenvers Hotel-Restaurant.
- As shown on the map and recommended, turn right and climb the winding path. Continue north-east along the edge of the plateau to the summit of Signal Forbes.
(5) Continue the descent, with wide hairpin bends, to the Montenvers Hotel-Restaurant.
(6) Turn right onto the local road and head to Montenvers-Mer de Glace station (S/E).
Return to Chamonix on the Montenvers train.
