To reach the Casteljau peninsula, take the D252. Leave this road towards Casteljau, "Belambra Club", "Camping le Mazet", "Pizzeria le C4". 50 m after the bridge, the car park entrance is on the left.
(S/E) Head towards the river and follow the yellow markings, taking the path to the left of the picnic area. Follow the river.
(1) Careful: you are no longer following the river. Turn right. At the top, near the cliff, you can take a short detour to see the Chassezac river and an arch (see photo). Be careful as the cliff is close. Then retrace your steps and continue to the D452. Cross with caution and you will come to a new path which is the Renard circuit.
(2) Turn right. From this point, follow the green markings. This circuit will take you under the rocks and offers many caves to explore! Keep left at the fork that appears shortly after, then follow the path that turns left and begins a series of bends before reaching the Grotte du Renard.
(3) Point of interest: view of Chazessac from a window in the rock (see photo). Continue along the path until you reach a crossroads.
(4) Leave the Renard circuit by turning right: you will find the yellow markings again. Begin the descent towards the Chassezac with a tricky passage. Return to the campsite.
Avoid the campsite by going via the beach. After all that effort, it's time to relax: you can unwind in the river. After the campsite, take the road on the left to return to the car park (S/E).