Signed F5, this trail's feature is to start from the Spanish border at the Portillon pass. The trail at Km 8 is common with No. 24 of Val d'Aran MTB Center. Take the pastoral track on the right that goes to the pass of Barèges up to the hut. Get down on Campsaure (lawn path) take the forest track "Chemin Louise" that leads to the Hospice de France. At km 10 two options: 1. Opposite Hospice de France 2. On the right Barguères - Ravi - Luchon The way back from the Hospice de France to Luchon can be done by the former road or through Barguères taking the forest track the other way round.