Park in the Hautes Verchères car park on Route du Mont Thou in Saint Romain-au-Mont-d'Or.
(S/E) Leave the car park by going up the street to the left. Take the first alley on the right (Chemin de la Cabrette), which quickly turns into a small path.
Continue straight ahead, crossing two roads (Chemin des Vondières then Route du Mont Thou).
After a fairly steep climb, you will come to a crossroads.
(1) Turn right. You will soon come to a bend in the Route du Mont Thou: take it to the left. At the houses, after the straight stretch, leave the road and continue straight ahead (Chemin du Vieux Nid). The path enters the woods and leads you above a fountain.
(2) Climb up to your left (you can also descend a few metres towards the fountain, which is home to salamanders). The fairly steep path leads you to the spoil heap of a quarry. Continue climbing.
The climb, which is still quite steep, leads to a path on the hillside.
(3) Turn right and after a few metres turn left to cross the meadow.
On the other side of the meadow, you will come to a path. Take this path to the left (yellow markings). Continue climbing until you reach the road.
Follow the road to the right until you reach an inverted Y-junction. Leave the road and take the path directly opposite.
At the first junction, after a few metres, turn left and climb up a path through a very dense forest.
(4) At the next junction, turn left along the hedge. Cut across the yellow-marked path and climb straight up through the meadow. You will arrive at the summit of Mont Thou, below the Air Force radar.
(5) Descend by taking the path that runs along the left side of the meadow, at the edge of the forest (north-west). Continue descending, still straight ahead, for about one kilometre, until you reach a crossroads.
(6) Take the path that descends to the left into the forest (towards Poleymieux).
At a place called Hivernat, turn right towards the school car park. Continue downhill through the woods. Cross the road and further on, turn left. Descend towards Poleymieux.
(7) Take the Roche road on the right and quickly leave it for the narrow Mollard path. Cross the road on the left and take the Chemin du Grapillon. To the left of the wash house, take the dead-end road (Chemin des Côtes).
Leave the street and climb up the steep path on the left that leads to the church in Poleymieux.
(8) Go around the church and continue straight on Chemin du Nerbey. Walk along the cemetery, past a pretty drystone shelter and the old quarries, now climbing sites. Keep heading north-east and when you reach the D73, follow it for a few metres to the left. You will come to the crossroads with Rue René Tachon (plaque in memory of this hero of the Resistance).
(9) Take this road. You are now at the entrance gate to the grounds of Curis Castle. Enter and follow the path, marked in yellow, which climbs to the left of the castle (private property). The path winds to the left of the castle, then heads towards the bottom of the valley and joins Grand Platane.
(10) Turn left towards the south gate. Continue on and you will reach the Porte du Pinay.
(11) Cross it and take the path that branches off to the right (south), at the bottom of a small valley, climbing increasingly steeply. After a sharp right turn, you will come to a crossroads. Turn left towards the road, at a place called La Croix Vitaize
(12) Cross the road and take the steps on the path opposite you. Continue straight ahead until you reach the fork you passed on the way there.
(6) Head left along the edge of the meadow. At the hairpin bend, follow the road and you will come to another crossroads further on.
(13) Take the path on the left, which descends straight ahead. Cross the road, continue straight ahead and you will come to another crossroads.
(14) Ignore the path that branches off to the right and continue downhill. The steep path leads to the Croix du Tignat, then to the first houses of Saint-Romain.
(15) Take Rue Paupière to the right. Cross the crossroads and take the path to the right of the calvary. It leads to the square in front of the grocery store. Turn left. You can walk to the Demeure du Chaos on the left side of the square. From there, take Rue de la République on the right, which leads to the car park, passing in front of the church and then the Bessée manor house. You will then arrive at the Hautes Verchères car park (S/E).