Start from the Bruyères car park at the Ménuires ski resort.
(S/E) From the car park, descend slightly towards the Doron.
(1) Cross the Bruyères bridge. Take the path on the right that starts at the foot of a statue. Climb towards Lac du Lou along this path, which leads away from Les Ménuires resort, and you will reach the lake and the old refuge, as well as the new one under construction.
(2) Go around the buildings and stay on the path overlooking the lake. After passing the lake, the slope becomes steeper and the path crosses streams, some with footbridges and some without.
(3) In a relatively flat area, cross the Torrent du Lou (not marked on the map). Continue along the path, which becomes steeper as it follows a faster-flowing stream. You will then come out onto a small plateau and see the Lac de Pierre Blanche.
(4) Continue along the path, which climbs further, until you reach a junction marked by a sign.
(5) Turn right towards the Col de Pierre Blanche and climb to an altitude of 2,400 metres.
(6) Descend via the same route you took on the way up until you reach the Lou torrent.
(3) Take a path on the right that is barely marked at the start, but aim for a footbridge that can be seen near the lake.
(7) Cross the footbridge and climb a few metres to go around a rocky outcrop, then descend to the lake and follow the path along the water's edge. Complete the tour of the lake by crossing another footbridge and joining a wide track just before the Refuge du Lac du Lou.
(8) Descend to the right along the path to a red ski run.
(9) Leave the path and descend to the left along the ski slope, heading for a footbridge over the Torrent du Lou.
(10) After the footbridge, turn right along the Doron de Belleville to return to the footbridge near the car park.
(1) Retrace your steps and follow the same route back to your vehicle (S/E).