Head to the Grand Caunet car park near the junction of the D3D and D3 roads.
(S/E) From the car park, take the track on the other side of the departmental road at the edge of the horse riding centre. Take the wide track heading slightly north and, after about 200 metres, continue straight ahead at the junction with the yellow trail. After about 400 metres, the track turns north-east.
(1) Leave the track when it turns right at a fork. Continue on the path opposite, following the track north-west to a stony clearing on the edge of the hillside, which offers a beautiful view of the Pic de Bertagne and Cuges-les-Bains.
(2) Cross the scree to take the path heading north. At the intersection, continue to the right (southeast) on a downhill path that leads to a wide track where you will join a PR®. Follow thePR® which takes the track on the left and leaves it after a few dozen metres on the right. Continue on thePR® until it joins theGR®98(white and red markings). Follow theGR® on the right (the route is offset on the map) and join a wide track leading downhill. Continue on theGR® to the left, heading north/north-west, and follow it to the Font Blanche riding club.
(3) Follow it for about 100 metres until you reach a wide forest track heading east. Take the path running alongside this track on the right. Follow this path, below the Barres de Font Blanche, until you reach a track junction (elevation 380). Continue along the track in the same direction (south-east) until you reach a three-way junction, then take the track that descends slightly to the left (white sign for "Service des Incendies"). Follow it to the bend at the bottom of the "Vallon de Carafa"
(4). Leave the track and take the path (mountain bike track) going up the valley (south). The path crosses a high-pressure gas pipe buried under a straight track (indicative yellow marker). Continue straight ahead, then take the path immediately on the right (west) and follow it to a track at a crossroads. Take the path opposite, climbing west/northwest to an intersection where you join aPR® (yellow line).
(5) Follow it to the left (south) until you reach a track, cross it and continue straight ahead. Follow the well-markedPR® to the 4th intersection at a clearing where the path makes a wide turn. Leave thePR® and take a winding path (north/northwest) on the right. Shortly before leaving the forest for a very open area at the edge of the track, take a straight path on the left (south-west) for about 30 metres to reach the Gouffre du Grand Caunet, marked "Le Colombarium Aven" on the IGN map, which is closed off by a wire fence.
(6) Turn back and then turn right to return to the crossroads where you rejoin the PR®. Turn right (south-west) and continue straight ahead until you reach the track you started on. Turn left and return to the car park (S/E).
