Set out from Castellas car park on the D24, Route de Eygalières, about 1.5km north of Mouriès.
From the car park, walk left along Route de Eygalières (D24) for 500 metres.
(1) At the bend in the road, take the dirt track that continues straight on and which then runs alongside the golf course a little further along. After 500 metres you will see a path signposted to the left and then another to the right: keep going straight on.
(2) After 400 metres, where the track widens, turn left onto a path that climbs up to the ridges. After 500m you will find yourself at the foot of the white cliffs of the "Caisses de Jean Jean." Continue along the path, which goes downhill a little, and walk along the foot of the "Caisses de Jean Jean" for about 1.8km.
(3) The path then joins a tarred track. Turn immediately right (towards Cagalou) onto the small tarmacked road which takes you through some beautiful olive groves and stay on this road for 1.8km.
(4) Turn right onto the track (towards Cagalou) and follow the track for 1.5 km. You will see that you have done a first loop as you arrive back at the path you started off at, which took you up to the ridges and the Jean Jean cliffs.
Carry straight on for about 200m and then take the path on the right (5) which runs alongside the golf course and then takes you along the bottom of the south face of the "Caisses Jean Jean." Follow the path for about 1.9km.
(6) When you reach the tarmacked road, turn left and follow the road for 400 metres.
(7) At the first bend, turn left onto a small path that allows you to follow the road while walking in the scrubland. After 600 metres, you will go past the entrance gate for Servanne castle and you will need to join the road again for about 300 metres.
(8) Just before the bend, a path on the left takes you back up to the hill. After a short climb, you will come to a path on the left, which you will need to take and which will lead you past the bottom of the water reserve tank (yellow waymarks). Stay on this path for about 500 metres. Then join the path to the left that climbs up to Castellas ridge. Once on the ridges follow the path to the right (to the east) and follow the ridges (1.2km). The path then leads easily downhill back to the car park.
