Petit Balcon Sud (1200m)
This trail runs all the way from Argentiere to Chamonix on the south facing side of the valley. The trail is actually a walking track so the top section in Argentiere is very tough. The best option is to join the trail by the turn-off to the Grands Montets cable car.
Following along the right side of the river heading towards Chamonix the trail eventually drops down above the railway lines to Les Tines. Carry on towards Chamonix until meeting an intersection where you have two choices. Up a steep track on the right to the Petit Balcon Sud which carries on all the way to Le Brevent in Chamonix, or continue along by the riverside to Les Praz and then Chamonix.
Take the high route for better riding and no traffic as the other trail meets the road in a few places. The Petit balcon Sud is very tough to ride in the opposite direction.