Tips
Sigottier village and its rock-climbing site visits on https://www.sisteron-buech.fr
From Arron pass, you can reach Duffre summit in an hour and a half (return trip) by crossing through the pastures. (2,4 km and 300 meters slope).
From Champlat, a return trip allows you to reach the Bonnet rouge summit (1645 meters) by following the ridge on the right (1 km and 60 meters slope.)