Depart from Place de l'Église d'Ampuis on Boulevard des Allées, along the D386 (formerly N86) on the left when coming from the north.
(S/E) Cross this road carefully and take Route de Boucharey. After about 200 metres, continue straight on Rue du Moulin, which runs alongside the stream. The paved road ends at a stone building (an old mill).
(1) Follow the rocky path that passes behind the mill and then climbs above it, rising up through the vineyards. After a few hairpin bends and a large left-hand bend, you will come to a road that climbs gently through the vineyards and ends in a hairpin bend on another road. Turn right and climb uphill to reach the hamlet of Tartaras.
(2) At the crossroads, turn left (signposted "Chaffage"). The road descends to cross the stream at IGN 320 (ignore the path opposite).
(3) Immediately after the hairpin bend, take the path on the right that climbs into the forest. Continue until you reach a tarmac road and turn right (Chemin de Fayardet). The road ends in front of a property. Take the path that continues on, ignoring the one that branches off to the left. You will come out onto a road (Fayardet hamlet on the right). Turn right and continue to the fork 100 metres further on.
(4) Turn left uphill onto the road that stops in front of a property (La Bâtie) and continues along a path that runs alongside the Grand Bois Naturist Resort.
(5) 200 m after the entrance to the estate (IGN elevation 424), at the crossroads, take the hairpin bend to the right. After 300 m on the slightly downhill road, take the path that branches off to the left. After three hairpin bends, ford the stream and continue along the left bank. Shortly afterwards, ignore the white mark indicating a left turn and continue to the right on the path (two red dots on your left at the foot of the trees).
(6) Less than 100 m further on, leave the path on the left bank and turn left into the thalweg on a path that runs along the right bank of a stream with an uncertain course, then crosses it before climbing into the forest in a wide curve.
At a small clearing in the forest, look carefully for the path to the right, stepping over logs and branches (a GPS may help). The path climbs gently through the forest to a clearing facing a meadow. Follow the path to the right, which leads to the hamlet of Côte Ferrée, where a slightly downhill road crosses it.
(7) After 200 m, leave the road and take the path on the left, which joins a tarmac road. Turn left and climb up to a crossroads with a small car park on the left.
(8) Follow the road to the left for 100 metres, then take the path on the right. After 150 metres, turn right. The path passes the Corins farm on the right and leads to the hamlet of Champin. Turn right onto the road that descends towards Ampuis.
(9) After 150 m, take the street on the right that leads to the D45. Cross it, leaving the waste containers on your right, and go up Route de Ritolas.
(10) Take thesecond street on the left (Rue de la Côte Brune). Descend towards Ampuis along a long, straight road through the vineyards.
(11) At the fork, leave the right-hand lane and turn left towards the vineyards. A path winds its way between the terraced vineyards to the town.
Cross Rue de la Brocarde and turn right onto Rue du Centre, which leads back to Boulevard des Allées opposite the town hall. The church is on the right (S/E).