The start is at the Lodge Auberge des Cascades (parking available).
(S/E) With your back to the car park, head back towards the Route du Tourmalet, walking alongside the campsite. At the end of the campsite, turn right onto a road
(1) Follow this road as it descends through the forest to the bridge over the Adour de Gripp.
(2) Cross the bridge and head into the picnic area on the right. Set off along the river upstream. At the far end of the picnic area, find the start of the path that follows the course of the river. Pass by an unnamed waterfall.
(3) Continue until you reach another picnic area by the reservoir of the Artigues power station.
(4) Turn right, cross the river to rejoin the road and follow it to the right back to the starting point (S/E).