Ourse (rivière) walks

Starting from Les Granges d'Astau, there is a long climb with some steep sections, made more pleasant by the presence of several lakes. Lac d'Oô and its inn, and Lac d'Espingo in its magnificent setting are ideal places to stop for a break. After Lac du Saussat (pronounced Sa-ou-sat), the much smaller Lac de la Coume de l'Abesque marks the start of the steep, winding climb that leads to a plateau dotted with smooth rocks and small lakes, and then to the Jean Arlaud refuge.

Fourth stage of the Ténarèze: this section of the route takes you back to the GR®105 from Fréchet-Aure. The route continues through Camous, a picturesque village with a rich mining heritage. You will then take a path towards Ilhet, following the old railway line, an industrial relic that adds a touch of nostalgia to the hike. The walk continues to Sarrancolin, the end point of this stage.

Third stage of the Ténarèze. From Ancizan, follow the GR® 105 north-east, crossing summer pastures and beech woods with views of the Pic du Midi de Bigorre. After Cadéac, the trail leads to Arreau, the former capital of the Aure Valley. Then take the old railway line (now disused), a flat path lined with ferns, to Fréchet-Aure. This balcony village, listed as one of the "Most Beautiful Villages in France", offers a panorama of the Pyrenees and a preserved pastoral heritage.

The second stage of the Ténarèze, at the bottom of the Aure valley, runs alongside the Neste river through fields. In places, the path widens, suggesting the trace of the old drovers' road, particularly near the Nourde footbridge. A peaceful route that passes through several small rural villages set on a plain ideal for resting herds before the climb to the summer pastures.