Access from Loudenvielle via the shuttle. For the most courageous, you will take the start of the course of Verticale du Louron (2.5km and 450m+). From the Val Louron Station you will climb very quickly by taking the second part of the vertical of the Louron. Once on the ridges, open your eyes! You are at the feet of the peaks with a beautiful view of the valley. The descent is done by a very playful monotrace path in the forest. Be careful however! Exit is forbidden on this section, be careful. You will finally reach the finish point after walking along the waters of the Génos-Loudenvielle lake.