The walk starts simply following the road even further up into the mountains, with greats views all the way. The road reaches the top at the 556 meter point, but only some 400 meters before this, in a 360 degrees bend, you take the small forest road to the right. This small track road quickly turns into a very small path, but very quickly you will be out on an opening in the mountain by the Tete des Buisses. Follow this ridge along a small path with old green markings for as long as the ridge will go (562 meter point, about 10-15 minutes). Nice place for a rest.
You have just come out from a protected forest area (Réserve Biologique Domaniale) and you should take great care not to generate unnecessary noise and certainly have no dog with you. You can easily skip this detour into the wilderness by following the main road the last 400 meters to the 556 meter point and turn right here where the Petite Luberon ridge road starts.
From the 599 meter point on the ridge road it takes about 45 minutes to the Bastidon du Pradon, a shelter for hikers. In the winter you can make a fire inside this shelter to keep warm for lunch. Here the GR6 crosses the road, and you turn right from the road along this. The first section out on one of the ridges along the GR6 takes you very near the areas where there still might be Bonelli eagles nesting, and the views in all directions are fantastic. This must be the most spectacular descent from the Luberon!
Follow the GR6 all the way down to the big crossroads at the top of Vallon de la Galere (about 1.5 hours from Pradon). Here you follow the fire road you joined about 100 meters back around the 360 degrees bend and continue it as it starts mounting the hill to the west. At the 369 meter point (with a water reserve – Citerne), you turn right along the fire road that bends away north-westwards. This road will eventually pass the 433 meter point and shortly afterwards take a 90 degrees bend to the south and bring you back to the car at the 397 meter point in about 1 hour and 15 minutes from Vallon de la Galere.
Distance: 17 km.
Ascent: 550 m
Start/finish: Le Trou de Rat refuge (1 km north)
Map: IGN 3142 OT (1cm=250 m)