Dam circuit at Le Tholonet

A superb hike, best enjoyed in spring: the Zola and Bimont dams and the old Roman dam are magnificent.

Details

544534
Creation:
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  • Walking
    Activity: Walking
  • ↔
    Distance: 12.39 km
  • ◔
    Average duration: 4h 50 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 451 m
  • ↘
    Descent: - 447 m

  • ▲
    Highest point: 373 m
  • ▼
    Lowest point: 175 m

Photos

Description of the walk

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).

Waypoints

  1. S/E : km 0 - alt. 177 m - Tholonet car park
  2. 1 : km 0.73 - alt. 201 m - Chemin de la Paroisse, straight ahead
  3. 2 : km 1.33 - alt. 295 m - Crossroads, on the right
  4. 3 : km 1.98 - alt. 230 m - Track, on the right
  5. 4 : km 2.66 - alt. 226 m - Barrage Zola
  6. 5 : km 3.7 - alt. 199 m - Old dam on the - Cause (rivière)
  7. 6 : km 3.93 - alt. 285 m - At the intersection, turn left
  8. 7 : km 4.18 - alt. 296 m - GRP junction, on the left
  9. 8 : km 4.45 - alt. 272 m - Fork in the road, turn right
  10. 9 : km 5.96 - alt. 236 m - Cause (rivière)
  11. 10 : km 6.51 - alt. 350 m - Junction with the GR653A, on the right
  12. 11 : km 8.24 - alt. 370 m - Fork in the road, turn right - Barrage du Bimont
  13. 12 : km 10.03 - alt. 275 m - Aqueduct
  14. 13 : km 11.17 - alt. 184 m - Waterfall - Barrage romain
  15. S/E : km 12.39 - alt. 177 m - Tholonet car park

Notes

Picnic tables at the forest house and also 100 m after the Bimont dam.

Worth a visit

Superb view of Sainte-Victoire and the two lakes.

Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.1 / 5
Based on 70 reviews

Reliability of the description
3.8 / 5
Ease of following the route
3.8 / 5
Route interest
4.7 / 5
User 4397409

Overall rating : 2.7 / 5

Date of your route : Apr 23, 2026
Reliability of the description : ★★☆☆☆ Disappointing
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★☆☆ Average
Very busy route : No

Warning: this isn't an easy route – it's a difficult one! Unless, of course, you're 20.

I really regretted doing this route; it’s slippery, and it veers off the main paths onto some rather dangerous narrow tracks.
The GPS worked the whole way.
Give this one a miss and choose another route to visit the dam

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Jmi26
Jmi26

Overall rating : 4 / 5

Date of your route : Mar 30, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

The route is described very clearly, but it follows narrow paths (it’s nice to get off the main tracks!), though the reality on the ground means you need an IGN map and GPS tracking. For example, the narrow path that follows the Cause stream is rarely used and can lead to getting lost. As a result, despite our ‘tools’, we wasted a lot of time going back and forth and had to shorten the route.
Note that access to marker 13 was blocked, forcing us to turn off directly towards Le Tholonet and arrive via Cézanne’s mill

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ed04
ed04

Overall rating : 4.3 / 5

Date of your route : Mar 23, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Please note that the final section of the route is closed by local council order due to the risk of rockfalls.
Otherwise, it’s a lovely route, though not always easy to follow.

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User 27930822
• Edited:

Overall rating : 5 / 5

Date of your route : Oct 24, 2025
Reliability of the description : Not used / Not applicable
Ease of following the route : Not used / Not applicable
Route interest : ★★★★★ Very good
Very busy route : Yes

En partant d'un autre départ que celui proposé pour cette boucle (magnifique), le descriptif était inutilisable. Par ailleurs la boucle était proposée dans le sens horaire, et c'est dans le sens anti horaire qu'elle est la plus belle.
il y avait du monde, mais de la place pour se faire plaisir.

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Jacklynn48
Jacklynn48

Overall rating : 2.3 / 5

Date of your route : Apr 21, 2025
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★☆☆☆☆ Very disappointing
Route interest : ★★★☆☆ Average
Very busy route : Yes

It's very difficult to follow the route described without GPS (and even then!!!). This circuit, or rather this place, is a real maze
Apart from following the little stream after the Zola dam, I didn't find this route very interesting, except for taking photos of Sainte-Victoire

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LIONEL13118
LIONEL13118

Overall rating : 4 / 5

Date of your route : Mar 30, 2025
Reliability of the description : Not used / Not applicable
Ease of following the route : Not used / Not applicable
Route interest : ★★★★☆ Good
Very busy route : No

Thank you very much for sharing!

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sylviane henner
sylviane henner

Overall rating : 4.7 / 5

Date of your route : Jan 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Very beautiful hike. There are few visitors at this time of year. There are many paths on some sections, but the route is very well marked.
After the steps carved into the rock, don't go too far to the left, but stay facing the tree with a white mark. Don't do this after rain, as it's slippery.
The Sainte Victoire mountain is often visible during the hike

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patricebeaufort
patricebeaufort

Overall rating : 5 / 5

Date of your route : Dec 01, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

On this December morning, there were few hikers on the trail to the BIMONT dam, but by 2 p.m., the whole of AIX was out and about around this remarkable structure.
We bypassed points 5, 6 and 7 to go directly from 4 to 8, taking advantage of the magnificent views and slowing down the pace.
The group of 27 friends was delighted with this superb hike.

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Anne13
Anne13

Overall rating : 4.3 / 5

Date of your route : Nov 07, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Magnificent loop through sumptuous landscapes. Very beautiful hike.

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Janine13
Janine13

Overall rating : 4.7 / 5

Date of your route : May 03, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

a very beautiful hike with a pleasant stretch along a narrow path by the water. The climb up from the rock steps is a little tricky, as it is steep and the path is poorly marked. The scenery is magnificent, with views of Lake Zola, Bimont and Sainte Victoire. Definitely worth doing again.

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pierreantoine
pierreantoine

Overall rating : 4 / 5

Date of your route : Jan 25, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful hike in glorious sunshine, but be careful as some parts are quite tricky to follow

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Doremi 13
Doremi 13

Overall rating : 4.3 / 5

Date of your route : Jan 16, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful route with numerous trails and varied landscapes. However, after the Zola dam, when you retrace your steps to follow the riverbed, you often have to put your feet in the water. Be careful if you are with children

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Ernestascc
Ernestascc

Overall rating : 4.3 / 5

Date of your route : Jan 04, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

Error in the distance indicated

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brageole
brageole

Overall rating : 4.3 / 5

Date of your route : Dec 28, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

a very beautiful hike in a wild environment, with two magnificent lakes, unfortunately too crowded that day (school holidays).
i couldn't follow the route between points 4 and 5 because you have to walk in the bed of the stream "La Cause" and halfway there I had to turn back because there was too much water that day. so I returned to the Zola dam and followed the DFCI between points 4 and 8. From there, you leave the DFCI and follow a beautiful wild trail through the heath to the car park at the Bimont dam. Then return to the start via the DFCI.
thanks to Dominique for this beautiful hike

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nath 59
nath 59

Overall rating : 5 / 5

Date of your route : May 15, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful and varied walk, crossing the dams is great fun. Easy to do with the family. Beautiful views of Sainte Victoire and lots of picnic spots to choose from.

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