Park in the car park at the Lablachère swimming pool.
(S/E) Join the road north of the car park and follow it for 100 metres. Turn right onto Chemin de Bourbouillet.
(1) Keep right at the next crossroads (yellow/white markings). After a few hundred metres, a path joins at a three-way junction on the left.
(2) Follow the continuation of this path, which heads south-east. Pass under a power line and keep right at the following crossroads (markings). You will arrive at a series of ponds linked to the presence of clay, called Font (fountain) Merdouse.
(3) Gradually enter the woods, where the karstic landscape appears, sometimes surprising. You will arrive at a clearly marked T-junction.
(4) Take the path on the right (marked). There is a yellow/white cross on the path on the left, which is not shown on the IGN map and is described in another hike: "A short walk on the Gras de Perret". The path quickly dips to the right, entering a landscape of rocks and slabs, often submerged in Tolkien-esque woods. Pay close attention to the markings and the trail, especially in areas with rocks and slabs. You will reach the "Réméjadou" hiking sign.
(5) Turn left towards "Bourbouillet". The trail passes through woods and between rocks. Between two large rocks on the left, the sound of deep water can be heard from the trail. After these large rocks, the trail changes from a south-easterly to a north-easterly direction and a small path leads almost back to the left. Caution: the Réméjadou karstic cave is about 30 metres deep. Caving equipment is required to access it. Approach very carefully (there is no protection, fatal fall in July 2023) and listen to the sound of water flowing at the bottom. Find the path that gradually emerges from the forest into a cow pasture. You will come to a wide path bordered by a high fence.
(6) Follow this path for about fifty metres southwards, then look to the right (be careful of the electric fence) for tracks leading downhill to access the Bourbouillet Resurgence.
(7) Retrace your steps to the previous crossroads.
(6) Take the path opposite (north-northeast) that runs along the fence on your left until you reach the "Espeluche" hiking sign.
(8) Turn right (towards Joyeuse). At the top of the hill, leave the fence and turn left.
(9) At the fork towards Saint-Alban-Auriolles, continue straight ahead towards Joyeuse. Keep right at the junction with a path coming from the left. You will come to a crossroads with a wide path suitable for vehicles, signposted "Falaises de Lunel".
(10) Take this path on the left (Route des Grads) overlooking the Beaume. Walk to the houses (water reservoir just before on the left). Follow the markings, leave the Route des Grads by turning left and arrive at Guilhaumon.
(11) Leave the road and take the path on the right to reach Lauzette, passing under a power line.
(12) At Lauzette, keep left, then right at the next crossroads. At Bouchard, you will arrive above a ravine.
(13) In a bend in the road to the right and north-west, a path leads south and joins the starting point.
(1) Turn in the opposite direction to complete the circular loop (S/E).
. Worth noting is the picnic spot at the Bourbouillet resurgence (point 7). Thanks to the route planner.