Climb (1100m, 2.5 hours) Chateau d'Oex (958m), via Refuge Les Choucas. Descent (1180m, 1.5 hours) To Rossiniere (891m). I wanted to do this hike running whenever possible, so I packed light and only made small pauses. For a normal hiking pace, add 50% more time. The normal route is steep, but easy...