Departure from the hamlet of Ubac. Park at the side of the road at the bottom of the hamlet, opposite the leisure area and below the cross-country skiing centre.
(S/E) Opposite the cross-country skiing centre, turn right and follow the Route de l'Ubac. Pass the chapel, then the hotel-restaurant and continue along the track until you reach the fork after the bridge over the stream.
(1) Continue along the track, climbing to the right, and reach the next fork.
(2) Continue straight ahead and enter the narrow valley. Cross the footbridge over the Torrent du Prentic, then continue along the path on the left bank.
(3) At the water intake, continue along a track and you will soon reach a fork.
(4) Turn left, ford thefirst stream (Torrent des Muandes) , then take the footbridge over thesecond (Torrent de Prentiq) to reach the Chalets de Prentiq.
(5) Take the path on the right for a round trip to reach a cross, then the ruins of the hamlet.
After enjoying the site, follow the track on the right leading to the chalets and rejoin the route you took earlier.
(2) Continue downhill to the right and reach the bridge over the torrent.
(1) Ignore it and continue on the track opposite until you reach the road.
(6) Turn left and head back to the cross-country ski centre (S/E).