Park in the car park opposite the town hall.
(S/E) As you leave the car park, take the road on the right (Chemin des Fangalots).
(1) Once at the top of the hill, follow the path opposite, heading towards the “Ruines du château de Blanchefort”. The path winds through the woodland and reaches a junction.
(2) Turn left towards La Cabanasse; the path continues to climb through the woodland, with some sections requiring care. You will emerge onto a tarmac road at the Col de Vioulas.
(3) Follow it to the left. At the wooden gate, continue straight on along the road; the old path no longer exists.
(4) Pass a path on the left signposted "Pierres Tremblantes": do not take it and continue to the next junction.
(5) Take the path on the right, following the sign for "Coume Sourde". The path climbs through the forest and leads out onto a plateau. Go straight on at the crossroads and continue along the path until you reach the junction with a road at a place called Coume Sourde.
(6) Turn left and walk along this road for about 1 km until you reach a three-way junction.
(7) Turn left onto the forest road which winds through the woods and further on crosses the Ruisseau de Valdieu.
(8) Take the small path on the right towards the Hermitage and join the D14. Turn left onto this road and continue to the junction with a tarmac road on the left.
(9) If it’s time for a break, turn right and head for a ford on the Blanque (route choice).
(10) Head back to the D14.
(9) Cross over and join the tarmac road you spotted earlier on the opposite side. Ignore the abandoned forest track on your left and continue to the junction you passed on the way out.
(5) Keep to the right and reach the start of the Pierres Tremblantes trail.
(4) Turn right, walk for about 250 m, then turn right to reach the site.
(11) Retrace your steps and continue the route by turning right. You will reach the Fauteuil du Diable and the iron-rich spring.
(12) Continue the descent towards Rennes-les-Bains and rejoin the D14. Turn left and follow the road carefully until you reach the town hall. Turn left then right to return to the car park (S/E).