The classic starting point is the small car park behind the campsite in the hamlet of Ailefroide.
(S/E) At the far end of the car park, you will find the traditional signs marking the start of the hike. Take the shaded path on the left.
700 metres from the start, with virtually no elevation gain, you will reach the first crossroads.
(1) Leave the path that leads to Clapouse by crossing the stream on your left.
Continue for quite a while along the valley floor and enjoy the stream and the view of the mountains.
(2) Continue along this single path, which begins to climb a little more steeply and will take you up a series of hairpin bends.
(3) At an altitude of almost 2,000 metres, leave the path that climbs towards the Pelvoux refuge on your right. (700 metres of elevation gain).
Continue along the valley floor, where the path climbs gently to the foot of the Barre de l'Ouro. The last few metres are a little more challenging. A handrail makes the passage easier. Pass below the refuge, then climb the last fifty metres and approach the refuge from the rear.
(4) A very rocky landscape with splendid views, particularly towards the Glacier du Sélé. You can also continue on to the old refuge (about 600m away at an altitude of 2,626m).
To return, take the same route in reverse to get back to the car park (S/E).