Head to the car park at the Tournaboup ski resort via Barèges (65). Arrive early (in both summer and winter) to secure a space.
(S/E) From the car park, cross the D918 and make your way through the resort buildings towards the bottom of the slopes, taking care to walk alongside them rather than on them. Early in the morning, this shouldn’t be a problem. Later in the morning, it’s best to go round the ski school’s nursery and follow the stream. Head up towards the south-east, keeping the small wood on your right and staying on its edge.
(1) Leave the bend at the Pont de la Gaubie car park (1,528 m) below on your right. Then generally follow the track (closed in winter), which is more or less covered in snow , or theGR®®10. On the other side of the stream, you’ll catch sight of the Cabanes de la Gaubie, a group of dry-stone buildings (see the ‘During the hike: Pastoralism’ section below).
The path is overlooked by the magnificent Soum de la Piquette (2,324 m), which is usually the only peak bathed in sunshine early in the morning. Turning round, you can also admire, on the other side of the car park, the ridge running from left to right from the Pic d’Ourdégon (2,436 m) to the Pic Bédéra (2,513 m), passing via the Soum de Moutarra, the Col des Pêcheurs and the Pic de Barbe.
Head for the 1,640 m mark, where the two paths meet. Continue along the Ruisseau des Coubous until you reach the Pountou footbridge.
(2) Cross the footbridge (1,740 m). You will soon reach the signpost (1,741 m). Turn left, heading due east, towards the Cabane d’Aygues Cluses. High up on the right in the distance, you can clearly see the pass that separates this long valley – which is fairly gentle in its lower reaches but very steep towards the end – from the plateau and the hollow in which Lac dets Coubous is nestled. You will return via this lake and valley at the end of the circular route.
Head up the valley of the Ruisseau d’Aygues Cluses. The path runs very close to the stream, on the left bank.
(3) Still on the left bank, at an altitude of 2,041 m, pass the reservoir and sluice gate which supplies Lac dets Coubous via a 2-kilometre underground penstock; you will pass by the lake on the way back.
Shortly afterwards, the track emerges from the woodland onto a very beautiful and vast, undulating plateau, leading via numerous routes to the Cabane d’Aygues-Cluses.
To the right in the distance, beyond the scattered mountain pines amidst the snow cover, if you look up you’ll be struck by the Pic and Crête de la Touatère (2,530 m), an imposing rocky massif, completely snow-covered in the depths of winter. In the distance ahead, blocking the horizon, lies the ridge stretching from the Pic d’Aygues-Cluses to the Pic de Gourget, with the Col de Barèges, another pass leading to the Néouvielle Nature Reserve.
(4) Stop at the hut, or walk past it, or make use of a rock jutting out of the sea of snow to take a break. It’s been two and a quarter hours since we left Tournaboup. It will take another two hours to climb to the peak.
Most of the tracks left by skiers and a few snowshoers head south-east towards the Col de Barèges. You may find yourself breaking trail from here! Head north-east across the Lac de Couela Gran, reach the Lac d’Agalops (both invisible in good snow conditions), then head east-south-east towards the Hourquette Nère, the first stage of the route. Stay at the bottom of the valley to begin with, then gradually climb up the left-hand slope, making your way up in short, numerous switchbacks… Reach the Hourquette Nère.
(5) Take in the already magnificent scenery at your feet! The whole of the Néouvielle Massif lies before you!
It’s not over yet; the final stretch is gruelling: there’s still a fairly difficult 155 m of elevation gain to cover, across snow-covered rocks and ledges that you’ll need to scale using your hands on numerous occasions.
(6) The Pic d’Aygues-Cluses finally reveals itself! From up there, words are no longer enough to describe the beauty all around… A large cairn emerges from the layer of snow (still plentiful enough that day, despite the already spring-like conditions). The return journey follows roughly the same route back to the Refuge d’Aygues-Cluses.
(4) Either follow exactly the same tracks or, as described here, head further to the right, leaving the refuge on your left, then follow the course of the Ruisseau de Coueyla Gran down to just below the reservoir.
(3) Then take the same path as on the way out, but in the opposite direction, to return to the car park (S/E).