Park your car on Avenue Jean-Jaurès near the municipal workshops (no. 71).
(S/E) Take Avenue Jean-Jaurès towards Gières. Take the second right onto Route des Maquis until you reach the next junction.
(1) Turn right towards Le Mûrier. Follow the road almost all the way to Fort du Mûrier.
(2) Just before the fort, turn left onto the path that continues from the bend (Chemin des Batteries Basses).
Turn left immediately and follow the path downhill opposite (Chemin du Château).
(3) At the bottom, after the reservoirs, turn left again (Rue du Repos) until you reach the D112, which you took at the start.
(1) Return to the starting point via the same route (S/E)