Test your limits with a stunning panorama. The Trail des Hauts Forts delivers pure verticality in the Chablais massif. You'll run the technical terrain of the Crêtes d'Avoriaz, ascend to the Col du Fornet, and circle the imposing face of the Hauts Forts, its most iconic summit. Expect a true lesson in alpine geology, with tricky roots in the forest and unstable scree at high altitude. The views are sensational. The atmosphere is friendly, far from mass-produced races, with cowbells providing the local soundtrack.