After Le Monêtier-les-Bains, continue towards the Col du Lautaret and turn left onto the D300 towards Le Casset. Park at the entrance to the village (plenty of parking spaces).
(S/E) Cross the village of Le Casset and reach the bridge over the Guisane. Cross it and continue opposite on the track supporting theGR®54, also mentioned on the signpost. Follow the red and white markings. Continue along the track; it is also possible to cut the bends by taking the paths. Reach the Pont du Clot du Gué.
(1) Take this bridge and then turn left to continue on theGR®54. You will reach a picnic area near the Glacier du Casset torrent.
(2) Stay on theGR® (marked trail) or take the grassy path on the right, keeping to the right bank of the Petit Tabuc torrent. You will reach a stony area.
(3) Continue climbing, taking care as the path becomes increasingly stony. You will reach a flatter section which will take you between some boulders to Lac de la Douche.
(4) Take the same route in reverse to return to the Casset car park (S/E).

a beautiful site that is well worth a visit and can be extended