Park in the Pierre Giret car park north of Sainte-Foy-Tarentaise.
Note: access to the Pierre Giret car park is via Sainte-Foy Tarentaise, follow signs for La Masure, then Le Crot. Please note that the road is very narrow and winding.
(S/E) Follow the road towards La Savonne, cross the bridge over the torrent and find the start of a path on the left.
(1) Take this path and continue until you reach a three-way junction. Keep left and you will arrive at a crossroads on a flat area with some ruined sheepfolds.
(2) Continue north, following the stream in the Louïe Blanche valley that opens up on the left (not the Ruitor valley on the right), then cross to the right bank of the stream. The path is sometimes very poorly marked. Reach the crossroads that leads to the Passage de Louïe Blanche.
(3) Leave this trail on your right and continue on the left (due west) until you reach a fork. Lac du Retour is indicated on the few signs.
(4) Keep left and follow a steep slope to quickly reach the Col du Retour and discover the lake of the same name nearby.
(5) Reach the lake.
(6) The view of Mont Pourri and Ruitor is stunning. Continue along the trail, then turn right. Ignore thefirst left turn, then a second left turn, and join the trail a few metres after thethird turn.
(7) Continue straight ahead to the Passage du Retour.
(8) Turn around and after 200 m, you will arrive at a three-way junction.
(7) Leave the route you have already taken and continue left until you reach the fork at the Col du Retour.
(5) Descend along the same path to return to the Passage de Louïe Blanche crossroads.
(3) There are two options:
- the more adventurous can take the detour and climb up to the left, to the Passage de la Louïe Blanche and its many small lakes.
- otherwise, continue in the opposite direction to return to the car park (S/E).