The route starts from the road leading to the Chartreuse de Sélignac, just before reaching its surrounding wall, at the statue of Saint Martin (St Martinus Siligniaci).
(S/E) Follow the road towards the Chartreuse and, fairly quickly, take the path along the wall (yellow and yellow-redGR® de Pays markings). Shortly after passing under a bridge, you will reach a fork in the path.
(1) Take the path on the right towards Corveissiat (yellow and yellow-redGRP® markings). Not far away, at asecond fork, go left uphill (always follow the markings): the climb is a little steep at first, then levels off for a while at almost the same altitude. After a while, you will reach a fork.
(2): Follow the path to the left (no signs or markings) uphill. Once you reach the ridge, you will come to a junction.
(3): Continue left on the path towards Corveissiat via the Balcon de Sélignac.
The route runs more or less parallel to a line of cliffs, following a winding path through a wooded area of box trees. Along the way, enjoy the clear views, particularly of the Chartreuse mountains (be careful of the cliff) . After a descent, you will reach a road (RD936) near a transmitter.
(4) Continue along the road on the right for about 150 m (be very careful of traffic) then turn left onto a small road. Continue straight ahead at thefirst crossroads and continue to the outskirts of the hamlet of Lavillat.
(5) Continue left uphill, avoiding the hamlet (follow the yellow markings). At the junction, turn right, then after a descent, join a small road at the bottom of a valley.
(6) Follow the road on the right uphill for about 600 m, which leads to Arnans.
(7) At a hairpin bend, continue straight ahead on a path. After a descent, you will reach a road (RD936).
(8) Cross the road with great caution and take a path on the right going downhill.
(1) At the fork you saw earlier near the Pont de l'Abbaye, return to the starting point by retracing your steps (S/E).