Coming from Nice, head towards Saint-André-de-la-Roche and, on leaving the village, turn right onto the road leading to the Emmaüs community of Abbé Pierre. Continue along the road that winds its way up to Abadie.
Parking is easy and free at Colle de Revel, near the Château des Voleurs and the Mont Revel climbing school.
(S/E) Head north on the road towards Tourette Levens. Follow it to marker 892. Enjoy the views of Tourette Levens and the Mercantour peaks.
(1) Take the path that winds its way up through the forest to the hamlet of Camp Soubran (or Sobran on the IGN map). Cross the hamlet following the yellow markings and take a path at the back and to the right of the car park. The path runs alongside a few private properties and climbs through an olive grove before descending to the left towards a forest track. Reach marker 894.
(2) Take the forest track on the right that heads east. Cross a few streams before reaching the Baisse or Col de Bordinas.
(3) Take the track on the right, heading south, and climb immediately to the right. Continue climbing to reach the summit of Mont de l'Ubac, with its two telecommunications antennas.
(4) Pass the antennas and descend following the path marked on the IGN map, which crosses the track leading up to Mont de L'Ubac several times. There are several possible routes, but this one leaves the Reboisat hill on the right and takes the tarmac road. Leave the road at thefirst hairpin bend on the left. You will arrive at the Reboisat DFCI water tank.
(5) Turn left onto the downhill track towards L'Abadie and, after a metal barrier, turn right onto the road that leads back to the Château des Voleurs car park (S/E).
Do not go to marker 784 because the right-hand track to the south is blocked by a padlocked barrier. We found a path heading due south at marker 783, which led us without any problems to the summit antenna.