This walk takes you through a species-diverse area from the Combioula source through the hamlets of Ossona, Alp Lovégno, l'A Vieille and Pas de Lona to the Becs de Bosson mountain hut at 3000 m. If you are lucky, you may see marmots, eagles and chamois along the way. The walk is 14 km long, on a good path and takes 6.5 hours. However, the difference in altitude of 2300 m should not be underestimated.
The careful planning of a tour will ensure that you also derive the maximum pleasure and enjoyment from it. Please take the time to contact the local information centre and enquire about route and weather conditions before setting off. Your intended trail may be fully or partially closed, depending on the time of year and weather conditions.