(S) From the centre of the village of Lancrans, take Rue de la Folatière on the right, then turn left onto the path of the same name, before continuing straight on along Rue de la Cambochette. Follow this road up to the next junction. Continue straight on along Chemin de la Croix de Fer. Take Chemin des Platières on the left.
(1) Head towards the roundabout by keeping to the right. Go round the cemetery on the left, walk past the school and head down towards the Valserine. The first few metres follow the tram line. Then, turn right onto a path that descends steeply towards the hamlet of La Léchère and Les Pertes de la Valserine.
(2) Continue along the path, following the river towards Bellegarde-sur-Valserine, until you reach the Pont Métral. Carry on straight ahead, on the same bank, for about 600 metres, then cross the next bridge to continue on the opposite bank. If the riverside path is closed, follow the diversion via the tram line to reach the centre of Bellegarde.
(3) Walk back up via the Valserine riverside car park, take the street on the left, under the railway bridge, and at the next roundabout, take the first street on the right, towards Bellegarde-sur-Valserine station.
(4) Just before the station, at the three-way junction, take Rue Lafayette on the left and follow it to the roundabout.
(5) Take the second exit and follow Rue de l'Industrie for 250 metres.
(6) Turn right onto Rue du Ponthou and continue to Rue de l'Avenir.
(7) Turn right onto Rue de la Grimpette, which certainly lives up to its name.
(8) Continue straight on Rue du Lotissement for 60 metres, then turn right onto Route d'Ochiaz.
(9) At the car park in the hamlet of ‘En Châtenay’, continue straight on along the GRP® to the entrance to the village of Ochiaz via the Route de Mussel, and continue the climb.
(10) Turn left onto the D991 for a few metres, then immediately turn right onto Rue du Four Banal.
(11) Cross the Route du Retord and climb towards Saint-Étienne Church, then follow the road to the right for 100 metres.
(12) Leave the road and take the GR® which climbs to the right towards Catray. The climb is short; cross a forest track before reaching Catray d’en Bas.
(13) Go round the ruins and continue left on the GR® to the Catray orientation table. There is a beautiful view over the Bellegarde basin, the Sorgia and the Alpine arc with Mont Blanc.
(14) At Catray, turn left and continue straight on the GR® for 2.5 km, passing the paragliding launch site. The path gradually slopes to the right and reaches the undulating parts of the Retord plateau, until it meets the Pra de Devant forest track.
(15) Take this track to the left for 2 km, until you reach La Charnay (E).