(S) From the centre of the village of Lancrans, continue for a few metres then take Rue du Sentier de la Folatière on the right, then 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 and head towards the roundabout.
(1) 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 left, then turn right onto a path that descends steeply towards the hamlet of La Léchère and Les Pertes de la Valserine.
(2) The path runs alongside the river towards Bellegarde-sur-Valserine as far as the Pont Métral. Continue straight on along the same bank for about 600 m, then cross the next bridge to continue on the opposite bank. If the riverside path is closed, follow the diversion via the tram tracks 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 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 cross the road to join Rue de l'Avenir.
(7) Turn right onto Rue de la Grimpette, which certainly lives up to its name.
(8) Continue straight on, along 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 Route de Mussel. Continue the climb.
(10) Turn left onto the D991 for a few metres, then take Rue du Four Banal immediately on the right.
(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 and steep. Cross a forest track before reaching Lower Catray.
(13) Go round the ruins and continue along the GR® to the Catray orientation point. There is a beautiful view over the Bellegarde basin, the Sorgia and the Alps, including Mont Blanc.
(14) At Catray, take the track to the 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 to reach La Charnay (E).