Park next to the bar (free parking).
(S/E) From this car park, take the D17 on the left, then turn right onto the small tarmac road (Chemin de la Paroisse). Follow this small road for about 200 m.
(1) Do not follow the forest road on the left, but go straight ahead up the hill (the road on the right will be the return route). Keep left at each intersection.
(2) At the crossroads, turn right at a right angle, then quickly left. Continue until you reach a wide track.
(3) Follow the track to the right for about 100 metres, then leave it on the left. Go around the forest house and pass the shed above it. Follow the canal that joins the track and continue left until you reach the Zola dam.
(4) Once at the dam, retrace your steps back to the forest house. Then take a path on the left to follow the Ruisseau de la Cause. Follow this beautiful little path that leads to an old small dam (barrage de la petite mer) that spans the stream.
(5) Cross this dam towards the left bank and climb the steps carved into the rock. At the top of the steps, take a faint path on the left that climbs towards an intersection.
(6) Turn left to join theGRP® Marseille 2013 (yellow and red markings).
(7) Turn left towards Lac de Zola and walk for about 250 m.
(8) Take a path on the right that then turns left to follow the eastern shore of the lake. At the crossroads, turn right to follow the Ruisseau de la Cause, which feeds into Lac Zola. Join the stream.
(9) Cross where there is almost no water. After crossing the stream, the path uphill is not easy to follow, with only a few white/purple markings and small cairns. The path turns right, then left before continuing straight ahead (north) until it joins theGR®653A(white and red markings).
(10) Turn right towards the Bimont dam. Ignore the various paths on the left before arriving at a car park. Cross the car park to reach the dam of the magnificent Lac du Bimont. Cross the dam and follow the track south until you reach the Zola dam fork.
(11) Turn right, keep right at the first fork and do the same at the next one. At the junction with the 311 road, continue straight ahead until you reach the small aqueduct after passing an old quarry on your left.
(12) Turn right and stay on this path which descends all the way down to the Ruisseau de la Cause.
Do not take the small blue path that branches off to the left and crosses the ridge towards Le Tholonet, but continue straight ahead to the old Roman dam.
(13) Once at the dam and waterfall, cross the stream and climb up under the cliff towards the castle. Walk just above the castle to rejoin the path you started on.
(1) Turn left to rejoin the D17, then turn left again to reach the car park (S/E).