From the Saint-Pierre district in Bollène, take the Montée du Barry to the barrier prohibiting vehicle access. Park on either side of the road.
(S/E) Go past the barrier and climb the path on the right marked "vers B4 et B3" (not shown on the IGN map). The path (stairs, ropes) is steep. You will reach a crossroads with a clear view of the village of Barry and its castle.
(1) Continue towards B4 and B3, turning right to take a passage carved into the rock.
Reach marker B4 and turn left onto a path where carts have carved furrows into the rock. Continue to marker B3.
(2) Continue to the right. When you reach a signpost, take the path on the right towards Château de Chabrières direct. Walk through the pine and oak woods. At times, they offer glimpses of beautiful panoramic views. At the next fork, turn right (look for a sign indicating "B3 Village troglodytique" in the opposite direction). At thesecond fork, keep to the right and follow the main path, which passes by a large rock with a pine tree growing across it.
(3) Turn 90° to the left. On the right, next to a large rock, there is a beautiful view of the ruins of Chabrières Castle. Ignore the next three paths on the right and follow thefourth, which is more clearly marked and indicated by a cairn and a green and black mark on a tree trunk.
Continue downhill in the same direction. On the left, the rocks form a viewpoint, then the path curves to the right and quickly leads to the castle. Caution: there is a risk of falling rocks if you descend below the castle.
(4) Walk along the right-hand side and descend until you reach the green Château de Chabrières 226m signpost. Descend towards the Château route, marked in green. You will reach a flat rock offering a vast viewpoint, then descend to the left.
Caution: take care on this exposed section on the rock, which is fairly short but can be daunting.
Enter the undergrowth. On the flat section, turn left and then leave the green markings, continuing straight ahead and ignoring the green cross. Go up to the left at the fork to follow a path that runs along the cliff.
Climb a large step on a rock, then walk below the ruins of the hamlet of Chabrières. You will come to a fork above a house.
(5) Take the main path on the left. A little further on, still on the left, you will find a wooden sign indicating the Grotte de l'Ermite (Hermit's Cave). Go there and back. Return to the main path and go around the hill. Descend to the right at the fork, then left onto a sandy path. You will reach another fork.
(6) Turn left and climb to the right until you reach the plateau on the Rocher des Trois Pigeons, where you will find a well-marked path. Take it to the left. Follow it and begin a steep climb. At the next T-junction, turn left. Continue straight ahead on the rock, then left at the rocks. Then follow the cart tracks carved into the rock. You will reach the crossroads of the path leading to the Enclume climbing site.
(7) Take it to the left to explore the site. Don't hesitate to walk around and admire the enormous rocks that stand there. You can make a U-turn by going to the edge of the cliff (panoramic view) and then returning to the trail. Take the trail again and quickly turn right heading north at the crossroads (turning left will take you back to Chabrières Castle). You will reach marker B12.
(8) Turn left, then right at the next fork onto mountain bike trails 8 and 9. Reach asecond B12 marker and turn right. Reach athird B12 marker and turn left.
At the next marker, keep right and follow mountain bike trails 8 and 9.
At marker 11, continue straight ahead.
At marker 10, turn left then straight ahead towards mountain bike trails 8 and 9.
When you reach a new marker indicating "Return to troglodyte village", turn left. Further on, continue straight ahead, following the signs for mountain bike trails 8 and 9. Return to the crossroads you passed on the way out. Turn right to find marker B3.
(2) At marker B3, continue straight ahead on the rock and then find a path that continues slightly to the right. You will arrive at a crossroads where there are two signs: keep following signs 8 and 9 for mountain bikes or follow the yellow signs. The mountain bike signs 8 and 9 lead to the entrance of a tunnel (actually the entrance to an underground aqueduct). The yellow signs lead above the entrance to this tunnel.
(9) Climb above the aqueduct to reach marker B2. Turn left to descend towards the troglodytic village of Barry. Here you have two options:
- after a section of ruined wall, descend to the left through a restored part of the village to reach the car park below, if the restoration work in progress allows it (then turn left when you reach the fountain-wash house and then right onto the tarmac road until you reach the barrier),
- continue downhill to a green post, which is marked on the map, indicating the recently refurbished orientation tables on the right, above a 180° view of the Rhône valley. Then continue following the cart tracks in the rock to go around the troglodyte village on the left before admiring and visiting the restored houses that are open to the public. After the fountain-wash house, join the tarmac road.
Turn right and retrace your steps to return to the car park in front of the barrier (S/E).