Departure from Coumebière. At Aulus-les-Bains, head towards Port de l'Hers via the D8F. After a series of tight hairpin bends and a straight stretch, you will reach the car park on the left at an altitude of 1,399 metres (summer pasture and hiking sign).
(S/E) Pass on the right-hand side of the cow enclosure and follow theGR®10path (red and white markings) to the watering hole.
(1) Stay on the main path that passes in front of the watering hole. It winds upwards and then crosses straight across a slope before turning left and entering a grove.
(2) When you reach an intersection, turn right and stay on the GR®. Pass another signpost while stayingon the GR®. The path winds upwards (clearly visible). Follow theGR® carefully because at one point you will need to walk over a rock to stay on the path leading to Port de Saleix.
(3) When you reach the Port, take the path that climbs to the right on the ridge, following theGR® (numerous tracks) until you reach a sign on the wall showing a brown bear. Take the well-marked path (GR®) on the left, which will take you to the other side. The lake is visible in this short section which descends and is equipped with a cable and steps (no particular difficulty for this passage). Continue along the path which passes through rocky blocks just before reaching the Étang d'Alate lake.
(4) Return via the same path to Port de Saleix.
(3) Take a well-marked path that descends straight down to the left. Follow it downhill, passing several hairpin bends and then crossing the stream (often dry). Shortly afterwards, the descent becomes steeper as there are few bends. You will arrive at the signpost.
(2) From there, follow the path on the left as on the way up to return to the car park (S/E).