From Luz-Saint-Sauveur, take the D918 towards Barèges, then quickly turn right towards Aste and Villenave on the D146. Follow the road, which turns into a track for several kilometres, ignoring the intersections. The track climbs through the forest and then into the mountain pastures.
Park on the right-hand side of the road in a hairpin bend near the barns (Estibe sector, see IGN map) at an altitude of around 1,461 metres. (See also the practical information section).
(S/E) From the car park, follow the track for about 100 metres.
(1) Turn right onto the grassy path marked with a yellow sign. The path climbs across the valley, skirting the mountain pastures of the Yse valley, and joins the end of the pastoral track.
(2) Follow the track to the right for a few metres, then turn left into the lane (stone wall).
(3) A little further on, you will come to an intersection that is not marked on the IGN map. Leave the Barradé sheepfold lane, which branches off to the right, and continue straight ahead. "Markings on the ground slab".
The lane, which temporarily turns into a path, climbs up the side of the Pic de Bergons, winding twice to reach the Bachebirou hut.
(4) Turn right and then climb the ridge to the west to reach the vast summit area of Pic de Bergons
(5) To return, follow the same route back to the car park (S/E).