Total immersion in the Petite Mer and its dam

This short hike offers a circuit that alternates between cliff tops and narrow valleys.
After thefirst part, which offers a panoramic view of the entire hike and a passage over the Zola Dam, thesecond part immerses you in the Petite Mer valley (along the La Cause stream) and its dam.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 5.50 km
  • ◔
    Average duration: 2h 25 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 286 m
  • ↘
    Descent: - 279 m

  • ▲
    Highest point: 308 m
  • ▼
    Lowest point: 194 m

Photos

Description of the walk

The walk starts from the cemetery car park. This is located on the D17 after passing through Le Tholonet, taking a left turn at the Moulin de Cézanne.

(S/E) From the car park, take the road that climbs to the right of the cemetery. At the property at No. 257, which is blocked by a green gate, take the path with a green barrier, marked in yellow.
At the private swimming pool, follow the path marked with yellow dots on the left as it climbs uphill. Follow the yellow dots until you reach a path.

(1) Turn right onto this road and continue uphill. At the top, at the wooden gate, take the road on the left, marked in yellow and red. You will then come to a large road with a bench on the right at the crossroads.

(2) Continue straight downhill, following the sign for "Barrage Zola".

(3) When the path climbs again, don't miss the tiny path on the left, which offers a panoramic view of the Petite Mer hike (be careful, it's on the edge of the cliff). You can see the Petite Mer dam in the gorge. Return to the main path. The path leads to a summit where there is a picnic table on the left and, on the right, a viewpoint over Lake Zola.
Continue along this path down to the dam.

(4) Cross the dam, where a sign explains its history.
Continue along this path, which descends to the left. When you reach the AEP house (Association des Excursionnistes Provençaux, which once owned this forest house, Zola), where there are two picnic tables, continue for another 100 metres.

Don't miss the path on the left at the crossing over the old canal. Follow this canal on the left until you reach a gap in the canal, where you should take the path that branches off to the left and goes uphill.
When you reach a high point, enjoy the beautiful views on the left over the Petite Mer, which you will reach later. The path then follows the ridge line of the cliff. A path appears on the right, but stay on the left.

(5) The path descends for a few metres. Don't miss the path that descends to the left at 180°, at the viewpoint. The path joins the ochre and grey cliff and continues to descend gently to the Petite Mer dam.

(6) When you reach the dam, cross it and climb the steps carved into the rock, just for fun and to take a photo, then cross the dam again. The trail is on the right immediately after the dam and joins the stream (La Cause), which it follows. When the trail is very close to the stream, a small stone dam allows you to cross it and continue on the trail that climbs uphill. Reach a small meadow and continue on the trail that climbs opposite.
At the top, at the pass, take the path on the left. The trail joins the main path you took on the way there.

(2) Immediately take the path on the right marked with a green circle, before the bench. Then at the next crossroads, turn right at the barrier, marked with a yellow circle. As you descend, don't miss the path on the left that goes through the gap, marked with a yellow circle. This path takes you to the path you took on the way there, which you take on the right to return to the car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 212 m - Cemetery car park
  2. 1 : km 0.49 - alt. 277 m - Turn right onto the path
  3. 2 : km 1.11 - alt. 297 m - Crossroads of the loop
  4. 3 : km 1.44 - alt. 278 m - Cliff on the left
  5. 4 : km 1.96 - alt. 223 m - Barrage Zola
  6. 5 : km 3.14 - alt. 290 m - On the left is the Tholonet viewpoint
  7. 6 : km 3.5 - alt. 208 m - Barrage de la Petite Mer - Cause (rivière)
  8. S/E : km 5.5 - alt. 212 m - Arrival at the car park

Notes

There are no water points along the route.
Good walking shoes are still necessary.
This route is well shaded overall, making it suitable for walking in summer.

Worth a visit

The Zola Dam (commissioned in 1854 and built by François Zola, the writer's father) and its reservoir offer beautiful views. Its canal, which brought water to Aix, has not been in use since 1970.

The Petite Mer Dam was built in 1475 under the authority of Jean de Jarente, owner of the Château du Tholonet, and was used to supply water to his estate.

Reviews and comments

4.4 / 5
Based on 34 reviews

Reliability of the description
4.3 / 5
Ease of following the route
4.2 / 5
Route interest
4.8 / 5
FFP
FFP

Overall rating : 2.3 / 5

Date of your route : May 21, 2024
Reliability of the description : ★☆☆☆☆ Very disappointing
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★★☆ Good
Very busy route : Yes

HELLO. Despite the efforts made by the narrator of this rondo, I would like to point out that the markings are virtually non-existent. At the start, facing the swimming pool, the post is in ruins and there is no yellow mark visible except on a second post 10 metres away on the track.But the yellow dots are in the other direction, so I retrace my steps and try climbing at a 90-degree angle from the pool along the white markers on the ground with a blue line (this is what the writer should have indicated).Halfway up, I discover some yellow circles and think, "OK, that's it." Then it's pretty well explained, except for the little path where you have to throw a threshold into the little sea. It's not on the left as indicated when the path goes back up; it's not that one, but halfway up, there's a small path that doubles back to arrive at the same uninteresting place.The trouble started after the dam and the house with the tables, which I know because I've been there before via Binious. Except that after 100 metres, finding the path on the left was a miracle; it's really badly explained. Anyway, after searching around, I retraced my steps and found the path. I followed the canal and that's where the trouble started.Instead of talking about excavation, which is a little further on and is the path I took, it's a lost cause. You have to go up where the canal wall is broken and turn right. I know this because I never found it by going a little higher and catching up with the ridge line. There is no 180-degree path as indicated at point 5.After struggling to find dead-end paths and exhausted, we returned with some hikers and their GPS, but with no signposts, we got lost again and decided to call off the walk and retrace our steps back to the house at A E P and the picnic tables to rest.We returned via the dam. At the dam, there was a ranger on duty to whom we recounted our misadventure. He strongly advised us not to take any Visio Rando paths not listed by the local council, such as the one indicated on my map, and to stay on the paths marked in yellow or red or red and yellow or even green.Conclusion: AVOID THIS TRIP or go to the Zola Dam, making sure you don't miss the start (see above), and return by the same route. Thank you for reading. FFP

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mes randos michel
mes randos michel

Hello,
in point 4, "Arrival at the AEP (drinking water supply) house in Zola," there is an error
AEP stands for Association des Excursionnistes Provençaux (Association of Provençal Excursionists), who used to own this forest house
this translation made our hiking club, the AEP, laugh
Best regards
ML

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pauleetpierre
pauleetpierre

Overall rating : 4.3 / 5

Date of your route : Dec 24, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

The first part is quite busy, but the second part is not. Read carefully and follow the directions.
Don't miss the lime mortar beneath the Zola dam, which was used to build the dam.

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Eurybie
Eurybie

Overall rating : 3.7 / 5

Date of your route : Aug 01, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★★★ Very good
Very busy route : No

Not an easy hike
The elevation gain is greater than advertised. You just climb up a hill and down into the valley, several times. I wouldn't recommend it to anyone who isn't in reasonably good shape. The route is also difficult to follow: sometimes you follow the same path as other hikers, sometimes you go down tiny dirt and rocky paths. Luckily, the GPS worked well, but we still got lost once or twice and had to retrace our steps. Apart from that, the scenery is breathtaking! The name is well chosen, it's a total immersion! I enjoyed the short section by the river It took us the time stated

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randojcv
randojcv
• Edited:

Overall rating : 4.7 / 5

Date of your route : Sep 11, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Very nice weather but "out of season" so not too many people. Be careful at the start not to miss the yellow markers (opposite the swimming pool below (before point 1: small steep climb) otherwise you'll have to make a "small detour" (purple trail on PDF).
There was no one between points 4 and 2 (AEP house and "Zola dam" sign on the way back) on this route. On this section, the GPS was a great help as there were no more markings (or we didn't see them) and sometimes the path was hard to find, especially at point 6 (small sea dam): the path was not visible and there were some tricky sections.The little river below was very welcome! Especially for the dog! We crossed it and then climbed, climbed... a little steeply, before returning to point 2.
A very pretty route. It took us longer than expected (about 3 hours 45 minutes, including stops to look around, take photos, have a picnic, dip our feet in the water and let the dog swim)
Tired but a very interesting hike (landscapes, culture, sport)

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symy
symy

Overall rating : 4.3 / 5

Date of your route : Feb 26, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

great walk. But a bit complicated from the AEP house. Luckily we took the description with us because it was very poorly marked. No blue, yellow or green lines. From the house to the stream crossing, the path is not easy.

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Pepainf
Pepainf

Overall rating : 4.5 / 5

Date of your route : Jan 23, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : Not used / Not applicable
Route interest : ★★★★★ Very good
Very busy route : No

A route that is a real favourite.
We went hiking on a Sunday with three children aged 8 to 10.
We encountered a few other hikers until we reached the Zola dam, and once we passed that point, we felt like we were almost alone in the world! It was a real pleasure.
You can enjoy the changing vegetation as you walk, depending on the orientation of the path in relation to the sun.
There is shade at times, which should make this route suitable in the warmer months.
The only downside is that the very precise description must be followed carefully. We hesitated a few times, and the lack of signposting is certainly regrettable, but luck was probably on our side and we were able to complete the entire route.
There are a few slightly more difficult sections when the ground is wet and muddy, but these are great fun for children.
It took us a little longer than the 2 hours and 10 minutes advertised, but we have absolutely no regrets about choosing this hike. We'll be back!

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Paul&Jenni
Paul&Jenni

Overall rating : 4.5 / 5

Date of your route : Apr 24, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : Not used / Not applicable
Route interest : ★★★★★ Very good
Very busy route : Yes

A very nice walk, especially from the Zola dam. We found it quite challenging, with lots of ups and downs and slippery sections. It took us 2 hours and 50 minutes without dawdling and without taking any 'breaks for fun'. We wouldn't spontaneously classify it as 'easy'. Good shoes are necessary, and GPS is essential for us. We were able to help a group that was a bit lost. We recommend it!

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B.Grisolle
B.Grisolle

Overall rating : 3.7 / 5

Date of your route : Mar 24, 2021
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

It is very difficult to find the path leading down to the dam from the ridge. Personally, I couldn't find it: there are paths going off in all directions! We had a great time anyway.

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Marani
Marani

Overall rating : 5 / 5

Date of your route : Mar 29, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful walk

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Derviche333
Derviche333

Overall rating : 5 / 5

Date of your route : Jan 17, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very pleasant walk near Aix with varied landscapes. As already mentioned, it is only busy up to the Zola dam, particularly for picnics after point 3.

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laurentweiss
laurentweiss

Overall rating : 4 / 5

Date of your route : Oct 25, 2020
Reliability of the description : Not used / Not applicable
Ease of following the route : Not used / Not applicable
Route interest : ★★★★☆ Good
Very busy route : Yes

Taken on 25/10/2020, Sunday during the All Saints' Day holiday.
There are huge crowds all along the start of the route up to the Zola dam (wide track), which spoils the enjoyment of the ride.
Fortunately, there is hardly anyone on the way back via La Petite Mer, which is much wilder and very pleasant with the Cause stream.
The elevation gain seems to have been underestimated; it is more than 300 metres, and the climbs are steep on the way back.
A short hike but not as easy as it seems, even if you do come across a few children.

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Oopus83
Oopus83

Overall rating : 5 / 5

Date of your route : Oct 15, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

What a lovely walk, with a little highlight on the path along the cliff.
We took the stone steps without ever going back down, continuing to climb until we found the path described in the guidebook. It was a bit steep, but that added a little "spice" to this superb hike

I highly recommend it!
Thanks to the author.

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Franssouai
Franssouai
• Edited:

Overall rating : 5 / 5

Date of your route : Oct 13, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Nice route! I took it today. The path along the cliff was very pleasant, and the stone steps were steep but picturesque. Thank you for sharing this walk.

PS: It was also a bit cultural, as the information boards explain that Emile Zola's father built the dam and then died, and that Zola spent his childhood in poverty, which may have inspired the subject matter of his books

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Visorando55
Visorando55

Overall rating : 3.3 / 5

Date of your route : Oct 10, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

A lovely short hike with a stop at the Zola dam.

The only slight downside was at point 5, where we couldn't find the path that turned 180°, despite numerous attempts.
We therefore descended back down to Le Tholonet before returning to Cézanne's mill.

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