Stop at the first car park on your right (just after the Tech dam).
(S/E) Head due west. Follow this path, which climbs steadily. Leave the forest.
(1) You will arrive above a water intake built on the stream. Continue to the right, still on the left bank of the Labas stream, along a well-marked path. Pass a small ledge and you will arrive at a fork
(2). The Bouleste hut is 50 m to the left. Turn right onto a path that climbs and heads north into the summer pasture (left bank of another stream).
Cross this stream and follow a well-marked path heading south-west. Cross another stream, head north-west and reach the Col d'Uzious (altitude 2236).
(3) From the pass, you can climb Pic Sanctus by following a path that climbs gently north-east. Go around the first peak you come to. Then, a few yellow markings will help you follow this steep path to the summit (altitude 2482) of Pic Sanctus. Follow the few remaining yellow markings carefully. Be prepared to turn back in case of reduced visibility (fog, rain).
(4) Descend to the Col d'Uzious, turn right to descend to Lac du Lavedan (altitude 2179) and Lac d'Uzious (altitude 2115).
(5) Return via the same route.
(1) Take an alternative route at the water intake. Turn right, pass the EDF building by crossing the stream and follow the yellow markings. The return journey is then along the right bank of the stream.
(6) At the fork, descend to the left into the forest. Exit the forest to arrive at a large clearing.
(7) Continue straight ahead, leaving the marked path that branches off to the right towards Lac de Pouey-Laun, and join the D105.
(8) Turn left. It is 300 metres to the cars (S/E).
