On the road to Pourtalet, the trickiest part is not to miss the small forest track leading to the Pont du Goua, which is barely visible on the left-hand side of the road. It is tarmac for one kilometre (with plenty of potholes!) and then becomes a gravel track. Follow it until you reach a Fork in the road; turn left for 20 metres to find a wider section where you can park.
(S/E) Take the path at the far end of the car park to reach the Pont du Goua and cross this bridge over the Gave de Soussouéou. Follow the path as it climbs through the forest. Watch out for slippery flat rocks, especially in wet weather. This is the most challenging part of the walk, with plenty of large boulders for three-quarters of the ascent: make sure you’re wearing sturdy footwear, especially for the return journey.
(1) At the junction, turn left onto theGR®10towards Gourette. About a hundred metres further up, continue straight on. Pass the Houn de Mouscabarous and you’ll reach a fork in the path (elevation 1341).
(2) Turn left, staying on theGR®10, which winds its way through the forest and eventually emerges from it (alt. 1510 m).
(3) The gradient levels out. Follow theGR®10to the Cézy Plateau and, at the start, walk alongside a beautiful rock face reminiscent of the Chemin de la Mâture. You’ll reach another fork (elevation 1643).
(4) Turn left, heading north, onto theGR®10variant. The path becomes less distinct as it crosses the plateau. You’ll arrive at the Cabanes de Cézy.
(5) Ignore a path on your left and take another one on the right (less visible) which climbs towards the pass. The path is then well marked all the way to the Col de Lurdé.
(6) Enjoy the superb panoramic view. If you still have the energy and stamina (an additional 141 m of elevation gain), head due east to reach the Pic de Lurdé (alt. 2089 m).
(7) The view is magnificent. Turn back and follow the ascent route in the opposite direction to the car park (S/E).