Refine your search for walks in Zone de protection de biotopes (APPB) Massif des Voirons
Balcon du Léman via the Signal des Voirons

A walk along the ridge and through the woods (in the cool), without tarmac, with beautiful views of Geneva and Lake Geneva to the west, and the Alps and the Mont Blanc range to the east.
This loop has the advantage of being shortened (or extended) as you wish, as it intersects with many other trails.