Park in one of the car parks at the Valmeinier 1800 resort.
(S) Take the path that zigzags uphill alongside the ski lifts, leading onto a wide track (ski run). Turn left until you reach the signs for Col des Marches and Refuge des Marches.
(1) Turn right onto theGRP® Tour du Mont Thabor trail (marked in red and yellow). Stay on thisGRP® trail all the way to the Col des Marches. During this challenging ascent, you’ll pass beneath the Inversins chairlift line and catch sight of the Roche Noire on your right. Reach the Col des Marches: a breathtaking panorama with a magnificent view of the Ecrins.
(2) Begin the descent, then pass close to some small lakes. At the bottom of the valley, you’ll look down on Lac de Bissorte to your left. Continue to the right, cross the torrent to reach the Refuge des Marches.
(3) Continue due south along the GRP®. After a hairpin bend to the left, you’ll reach the beautiful Lac des Batailléres.
(4) Go round it on the left. Heading south-east, climb the Col des Bataillères. (On the right, the Cheval Blanc).
(5) Begin the descent. Then pass between Lac Long and the Lacs Marguerite to reach the Refuge du Thabor (E).