Car park on the D112 between Peyrins and Saint-Donnat-sur-l'Herbasse.
(S/E) With your back to the road, head towards the information board at the far end of the car park, slightly to the left.
Yellow markings + red-and-white markings
Follow the path that heads off to the left (immediately leave the path on the right, which will be the return route). Go round a large fallen tree trunk and continue to the junction.
Yellow markings
Continue straight on along the path marked “Parcours Sportif” (ignore theGR®® to the right). Shortly afterwards, you’ll come to a fork: take either the right or left path; the two tracks meet again after about thirty metres. The path climbs slightly after passing a few buildings at the top and arrives at a junction (not shown on the map).
(1) Continue straight on towards Parcours Aventure (leave the Sentier Découverte on your right). Further on, join a path coming from the left and arrive in front of the tree-top adventure centre reception. Pass it and continue along the path (leave the entrance to the facilities on your right). Follow the path which runs alongside a field (leave all the paths leading into it on your left). The path curves to the right and climbs slightly, ending at a flat area where several paths and tracks cross.
(2) Turn left, walk 10m to reach another junction. Continue straight ahead (the path on the left will be the one for the return journey). The path soon emerges from the woods to run alongside a clearing, then enters the woods again to reach a house.
(3) At the crossroads, turn left onto the tarmac road until you reach the next property, where the path loses its surface. Enter the woods again and, 100m further on, at a fork (not shown on the map), turn right onto a sunken track. When the climb ends, you’ll reach another fork. Take the descending track on the right, which is a bit stony, and leads to a path.
Yellow markings + red-and-white markings
(4) Turn left; shortly afterwards, pass the access on the right leading to a farm, then join a path coming from the left. Continue straight on and arrive at a new crossroads of paths (only the track on the right is shown on the map, but there is a path on the left). Continue straight on along the main path (a path is marked on the map to the right but is no longer visible on the ground). Walk gently uphill until you reach the path taken on the way out. Turn right for a few metres to return to the main junction on the flat section.
Yellow markings
(2) Turn left onto the descending path which soon leads back to the picnic area near the car park. Pass a path on the left and continue on to rejoin the path taken on the way out; turning left here takes you back to the car park (S/E).