Take the road to the Clarée Valley and park at the car park at the end of the road by the Laval chalets.
(S/E) Take the wide track that leads to the Drayères refuge (signposted and marked with red and yellowGRP® signs for the Tour du Mont Thabor). After about 1 km, you will come to a crossroads with a path.
(1) Take it on the right (signposted Lac Long and Lac Rond). Climb gently and you will first reach Lac Long.
(2) Follow the trail, skirting the lake on the left, then begin a slight climb. You will then reach a scree area where cairns lead to a point overlooking the lake.
Take a well-marked path on the left, marked by a cairn, which descends briefly to Lac Rond.
(3) Follow the lake to the overflow stream and rejoin theGR®57(red and white markings). Turn left and descend gently to reach a new crossroads.
(4) Leave theGR® here and take the path on the right, cross the Torrent de Brune and its tributary on two footbridges, then continue along the path to rejoin theGR®57and theGRP® du Mont Thabor below the Refuge des Drayères.
(5) Take it on the left until you reach the trail junction located shortly after the Pont de Pierre.
(6) Turn right onto the yellow-marked trail. Cross the Clarée. Continue on the right bank until you reach the Pont Moutet.
(7) Cross the bridge and you will return to the car park (S/E).

This hike takes place in an enchanting setting. The path is good, although the chaotic boulders to negotiate as you approach the round lake may cause some problems for those who are not used to it.