At Barmettes cross the river and follow the skin motorway heading for the Lac des Vaches (and on to the Refuge du Col de la Vanoise) then bear left at the flat area of the lake up the steeper slopes of La Séchette (100m of 35º-ish) to enter the flat of a mini hanging valley/bowl. Head due north passing 2 steepening with rocky steps if the snow cover is thinning (chains in place for summer climbers) and set foot on the Glacier Sud de la Glière - this is rapidly shrinking but does still have some small crevasses here & there… Continue up this to the col.

The descent follows the line of ascent, continuing down the pistes from Barmettes either to Les Fontanettes or all the way back to the town.