Geological curiosities around the Citerne Neuve

If you are guided by a desire to explore, this circuit, which penetrates the heart of Siou-Blanc, will allow you to discover lost arches, caves, karstic caves, dolomites and a few rocks whose shapes give free rein to the imagination. There are also a few remains of basic shelters, evidence of ancient occupation of the site. All these curiosities are hidden in the heart of a magnificent primeval forest and can be accessed by straying slightly from the more frequented paths.

Details

28965273
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 9.16 km
  • ◔
    Average duration: 3h 45 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 408 m
  • ↘
    Descent: - 409 m

  • ▲
    Highest point: 707 m
  • ▼
    Lowest point: 558 m

Photos

Description of the walk

To get to the start of the hike, go to Solliès-Toucas via the D554 and then turn onto Avenue Thyde Monnier.
Cross the village and join the Route Forestière des Morières (closed during periods of fire risk)
At a hairpin bend, turn right onto the track known as Chemin des Morières à Montrieux (the IGN map has a spelling mistake).
At the entrance to the path, there is a hiking sign attached to an oak tree. Park in the car park just after it.

Prerequisite: Read the "Practical Information" carefully.

(S/E) From the car park, take the Chemin des Morières in Montrieux for about 500 m, heading north-north-west. At the intersection after passing under the high-voltage power lines, turn right onto a newly created track that climbs north-north-west.
About 250 m further on, at a flat section, turn left onto the path heading north-northwest and follow the cairns. The path approaches Chemin des Morières in Montrieux, but do not join it. Continue towards the bottom of the valley on a cairned trail that does not appear on any map.
Pass a natural dolmen on the left and look for a passage on the left between two rocks further on.

(1) Pass between the two rocks and then in front of a distinctive mushroom-shaped rock. Go around a group of rocks and bushes and, going back and forth, climb up to the Petit Puits at the top of a slab.

Retrace your steps for about 40 metres and look for a path on the right that climbs between two trees towards the east-north-east, marked by cairns, one of which has a blue dot. From this path, make another round trip to the Baume du Paradis. The interior of the cave is easily accessible. In the second room, a reservoir collects water from the ceiling.

From Baume du Paradis, it is possible to reach the rock shelter of Les Lumes (red dots), but we will pass by it on the way back.

Return to the path at the Blue Dot and continue north-northwest. Pass a dolomite rock covered with vegetation on your right and you will come to a T-junction. At the junction, turn right and head northeast for a few dozen metres until you reach a clearly visible cairn.

(2) From this cairn, continue left, heading north-northwest, and join the path that leads to Citerne Neuve. Pass this and then, at a Y-junction, take the path on the left, which runs roughly parallel to the ET19, and join the remains of a charcoal burner's hut.

(3) From the hut, turn left towards the north-northwest, follow the cairns and pass a karstic cave. The path turns west, descends slightly, passes between two rocks and joins a large arch with a shelter at its foot.

(4) At the Hippopotamus Arch, from the north side of the arch, take a path marked by cairns on either side that climbs through the undergrowth towards the north-west. This path does not appear on any maps. Cross a flat area and then a fault in a small rocky ridge before returning to level ground in the middle of a corridor of large rocks.

There, look for a cairned passage on the left that climbs up to an arch that is invisible from the path.
It is possible to access the other side of the arch by going back a few metres via an ascending passage marked by cairns with a tree in the middle. Take the path north-northwest to a T-junction marked by a large flat stone in a hollow between some trees.

(5) From the intersection, turn left onto the path that heads roughly south (visible on OSM). After a mushroom-shaped rock, don't miss the first arch on the left, five metres below, which is slightly elevated and can be accessed. The rest of the path has been ploughed up by wild boars, so it is advisable to follow the cairns placed on tree forks and rocks. Further down, at a sloping rock close to the ground, note a path on the right, the start of which is marked by a stone placed on the fork of a bush. This path does not appear on any map.

(6) Turn right onto this cairned path, which climbs west-northwest for about ten metres to a barely visible Y-shaped intersection, each direction of which leads to an arch:
- Access to the arch on the right: easily climb a few moss-covered rocks and climb between the rocks. Caution! The end of the path, which crosses ground ploughed by wild boars, is very steep, slippery and requires you to hold on with your hands. From the arch, return to the previous Y and turn right.
- Access to the arch on the left: from the Y, continue between the large rocks; the arch is opposite, somewhat hidden by vegetation. Pass under the arch, continue west-northwest and end at a dead end at the foot of several resurgences (fed only during heavy rains).

Return to the main path (visible on OSM), continue south-west and follow the cairns closely.
At a large rock on the right, pass the Source du Bousquet and further on the left, a tabular rock surrounded by several trees. At a T-junction with a path that does not appear on any map (leading to Chemin de Morières in Montrieux), turn left. At a hairpin bend to the left, you will come to a small cirque of moss-covered rocks on the right, where you will find the remains of a charcoal burner's hut, a few faults and a karstic cave.
Walk around this circle, then return to the path and head back to the Hippopotamus Arch.

(4) From the arch, take the path you came on and pass by the charcoal burner's hut again.

(3) Leave the hut on your left and take a short cairned path opposite that climbs south-east to join the ET19. Turn left onto this path, climb north-east for about a hundred metres, then turn right onto a cairned path that heads south-east to a group of remarkable rocks, which you can visit at your leisure.

Cross a fault requiring the use of your hands, pass in front of some rock shelters, then turn right at a dead tree to reach a slab with a view close to the summit. Return to the ET19, continue for about 150 metres towards the north-east until you reach a large fallen tree on the left. At the tree, turn right onto a cairned path that heads south and leads to another remarkable rock formation. To reach the summit, cross the rock via a small corridor. Return to the ET19 and continue north-east.

(7) Look for a path on the right marked by two cairns, one of which is in the middle of four closely spaced trees, and continue on the ET19 for about 100 m until you reach a small karstic cave on the left, behind which are a few standing stones.

(8) Behind the karstic cave, take a well-marked path heading north-west to a rock slab that requires a little climbing to reach. The easiest access is from the south-west of the rock.
This slab is a good place for a picnic, with one of the most beautiful views of Siou-Blanc. Then return to the ET19 and follow it in the opposite direction, towards the south-west, for about 100 m, until you reach the path you spotted on the way there, which branches off to the left, marked by two cairns, one of which is in the middle of four closely spaced trees.

(7) Take this path, which does not appear on any map, heading roughly south. Pass a rock on your left that resembles a turtle, then turn west-southwest. Pass the remains of a charcoal burner's hut, then turn right towards the Rocher des Sambles. Walk around the rock to enjoy the view and see its surface riddled with cup marks, from which it gets its name.

Return to the path a little further down and continue south-west to the Baume des Enfers.
Pass the cave, descend about 50 metres and turn left at the intersection.
Pass a rock that looks like a mille-feuille cake; this is a trail junction that we will pass again on the way back.

Continue straight on towards the south-south-west until you reach the remarkable rock known as Tête de la Marquise. Return to the mille-feuille-shaped rock, turn left and join the ET19, which you follow towards the south-south-west. At the watering hole, turn left towards the east-south-east onto a cairned path that does not appear on any map.

Cross a flat area and pass the remains of a charcoal burner's hut located a few metres from a group of remarkable rocks. There, turn right along the rock, pass a rock shelter, cross a ravine with moss-covered rocks, join the Citerne Neuve path and then rejoin the path taken on the way out at a clearly visible cairn.

(2) At the intersection, turn left onto a wide path that does not appear on any map. A hundred metres further on, pass a path on the right, then a tree lying across the path, and you will reach a Y-shaped intersection. Turn right, then 20 metres further on at another Y-shaped intersection, turn right again. A cairn marks the Baume des Lumes and its entrance is marked by a fallen tree.

(9) From Baume des Lumes, take the path that first heads south-east before reaching an intersection on a flat section (the path on the left leads to the track that we will join further on). There, turn right towards the east-southeast until you reach another intersection with the remains of a charcoal burner's hut, then at the next intersection, turn left towards the west-southwest onto a path that then heads south.
Pass a viewpoint on the right marked by cairns, then about 100 m further on, take a path on the left marked by cairns and climb a few dozen metres to the Aven des Cistes. Behind the cave, a grove to the south-west hides a viewpoint with a beautiful view.

Return to the intersection and take the path heading south-east, which is sometimes marked with red dots. At a large rock on the left, the Lumes shelter is hidden below, under the rock. Shortly after the shelter, at a barely visible Y-shaped intersection, turn left (on the right, the path marked with red dots descends to the Baume du Paradis).

Pass the remains of a charcoal burner's hut, then turn left, about ten metres from the path, and walk to the Aven du Sortilège and back. Return to the path, which leads to a newly created track where the intersection is marked by a flat rock. Turn right onto the track and, about ten metres further on, turn left onto a path that descends along a small valley. Pass under the high-voltage power line, then reach a crossroads.

(10) From the intersection, turn right. The trail first heads west, then climbs and branches off slightly south, rejoining the car park at the entrance to Chemin des Morières in Montrieux (S/E).

Waypoints

  1. S/E : km 0 - alt. 585 m - Parking at the entrance to Chemin des Morières
  2. 1 : km 1.24 - alt. 595 m - Passage between two small rocks
  3. 2 : km 1.98 - alt. 597 m - Cairn, intersection for the outward and return journeys
  4. 3 : km 2.69 - alt. 636 m - Intersection at the hut
  5. 4 : km 2.92 - alt. 677 m - Arche de l'Hippopotame
  6. 5 : km 3.11 - alt. 690 m - Crossroads with a rock in the middle of four tree trunks
  7. 6 : km 3.31 - alt. 669 m - Intersection at the rock, path to two arches
  8. 7 : km 4.74 - alt. 686 m - T-junction A/R
  9. 8 : km 4.94 - alt. 699 m - Small karstic cave
  10. 9 : km 6.77 - alt. 645 m - Baume des Lumes, large dead tree
  11. 10 : km 8.79 - alt. 558 m - Intersection
  12. S/E : km 9.16 - alt. 585 m - Parking at the entrance to Chemin des Morières

Notes

Important:
As this loop includes some paths that do not appear on any maps, it is only suitable for experienced hikers.
The route through the undergrowth and among high rocks often interferes with the reliability of a smartphone's GPS positioning.
As a large area is not covered by the telephone network, it is recommended that you download the maps to your smartphone and/or print out the route at a scale that allows you to read it clearly.

Map showing access to forest areas at risk of forest fires:
In general, from 21 June to 30 September, the forest road leading to the forest is closed to motor vehicles. To check access options: https://www.risque-prevention-incendie.f...

Duration of the route and possible shortening of the itinerary:
The walking time given by the app is 3 hours 40 minutes.
To explore all the hidden corners of these attractions, allow around 5 hours, including a picnic break.
If necessary, it is possible to shorten the circuit, as some loops can be avoided at your discretion.

Water on the route:
The karstic cave du Petit Puits was almost dry, with little water of dubious quality, making it difficult to refill your water bottles.
The Citerne Neuve was well filled.
The Source du Bousquet is known to provide a thin, pure stream of water only after a long period of rain, so refilling there is uncertain.
La Baume du Paradis: in the second chamber, a cistern collects water from the ceiling.
If you have any doubts about the quality of the water, bring purification tablets.
(Observation made during the drought in September 2022).

Shelters:
- Shelter under the rock at Les Lumes (N 43.225349° / E 5.95256° - altitude 639m).
- Baume du Paradis (N 43.224878° / E 5.952418° - alt. 624m).
- Shelter at the foot of the Hippopotamus Arch (4).
Note: the room adjoining the Neuve cistern is padlocked and can therefore no longer be used as a shelter.

Exploration of the caves:
- Shelter under the rock at Les Lumes: no equipment is necessary.
- Baume du Paradis, equipment required: a torch.
- All other caves are only suitable for experienced and equipped cavers.

Coexistence with hunters:
Check with hunting societies in advance for dates and locations of hunts:
La Limatte: http://la-limate.fr
La Daumasse: https://domaine-daumasse.com and http://domainedaumasse.free.fr/contact.p...
On the advice of hunters, wear orange headgear. In addition, you can also attach a bell to your rucksack.

Miscellaneous:
In Solliès-Toucas, at the entrance to Avenue Thyde Monnier, there is a bank, a chemist's and a bakery.

Reviews and comments

4.5 / 5
Based on 21 reviews

Reliability of the description
4.6 / 5
Ease of following the route
4.1 / 5
Route interest
4.9 / 5
JJPLS1937
JJPLS1937

We didn’t complete the whole hike because of a fall, so we’re going to try again!

Machine-translated

ChristianB83
ChristianB83

Hello rumax, I happened to come across the Dolomie at "Tête de La Marquise" in Molières, and if you’re interested, I could send you a photo to add to your route guide – perhaps it might be useful for future hikers?
Best regards, Christian

Machine-translated

bernard coulomb
bernard coulomb

Overall rating : 5 / 5

Date of your route : Feb 09, 2026
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Sporty and highly original, this walk is reminiscent of the bestiaries of other French karst areas. Rich in karstic caves, faults, caves and other rock shelters, the Maures massif offers a completely different world, even though it is adjacent to the Siou Blanc plateau. The undeniable advantage of this karst plateau is that it absorbs all the water that the sky has decided to throw at us over the past month; the paths remain dry, whereas in the neighbouring massif they are veritable rivers.

Machine-translated

kirikou83
kirikou83

Overall rating : 4.7 / 5

Date of your route : Oct 19, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Thanks to the author for this beautiful and surprising hike with magnificent colours at this time of year. You have to take the time to discover the paths and these truly unexpected sights, each one different from the next. As the hike itself is not difficult, the "treasure hunt" ends up being great fun.

Machine-translated

chrissmeounes
chrissmeounes

Overall rating : 4.7 / 5

Date of your route : Mar 03, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Some wonderful discoveries in this mountain range, which is so often visited but never ceases to amaze.

Machine-translated

rumax
rumax

Hello JPTINTIN.
Indeed, in autumn, the trail on the ground is significantly hidden by leaves, which makes it difficult to follow.
As for the red dots, a hiker added this overlay a few months after I created this route.
I marked this trail only with cairns placed high enough, on rocks or in tree forks, as much as possible so that wild boars would not knock them over.
As for the description that you find "average", I would be interested in hearing more details so that I can think about how to improve it.
Kind regards, rumax.

Machine-translated

JPTINTIN
JPTINTIN

Overall rating : 3.3 / 5

Date of your route : Nov 05, 2024
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

Do not go there in autumn, as the leaves may obscure the markings (in red), which appear to be several years old. In addition, they are often at ground level and poorly placed; sometimes it took me more than 10 minutes to find them.
To access the two arches, I thought it was a loop, but it's actually a round trip, and the access is almost invisible with no markings.
In short, take your time, otherwise I really enjoyed the circuit itself, it's a change from the big tracks.
JP

Machine-translated

leo du var
leo du var

Overall rating : 5 / 5

Date of your route : May 13, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant hike without any major difficulties. The trail is easy to find with a little patience. Some beautiful discoveries.
Thank you for this beautiful hike

Machine-translated

fferret59
fferret59

Overall rating : 5 / 5

Date of your route : Apr 02, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

very beautiful walks, lots of interesting things to see, the route is very pleasant and very easy to follow, no major difficulties. Many thanks to the author

Machine-translated

APM#83
APM#83

Overall rating : 4.3 / 5

Date of your route : Feb 06, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful hike that lives up to its name! The geological features are really worth seeing. You have to pay attention to
the direction; following the red dots is a good idea, as they mark practically the entire route.

Machine-translated

Fibie83
Fibie83
• Edited:

Overall rating : 5 / 5

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

A very pleasant, easy hike
No problem following the red markings and cairns, which helped us find all the points of interest... A very beautiful walk among magnificent rock arches and caves.
Well done and thank you to the author

Machine-translated

gratier denis
gratier denis
• Edited:

Overall rating : 4.7 / 5

Date of your route : Oct 16, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Hello
I just went on the hike with a group of 18 people, and it was exceptional.
Many thanks to the author.
What a job of reconnaissance! Hats off to you.
The whole group was delighted, and it was a great introduction to orienteering.

Machine-translated

cigalelc
cigalelc

Overall rating : 4.7 / 5

Date of your route : May 14, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant, easy hike with beautiful rocks to discover. The only downside is that you have to refer to the description very often. But this can be an advantage if you have children or teenagers and give them the task of being the guides. As the hike is short, it can be an opportunity to introduce them to orienteering and reading instructions.

Machine-translated

FAROLETTE
FAROLETTE
• Edited:

Overall rating : 4 / 5

Date of your route : May 08, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A very interesting hike from a geological point of view. Thefirst part is easy and well marked with red dots indicating the five arches. Thesecond part is a little harder to find, marked only by cairns
But we really enjoyed exploring this hike and will suggest it to our club. It took us five hours to explore it, so we reckon it would take a group about the same amount of time.

Machine-translated

rumax
rumax

Hello Aquariel.
I am sorry that you lost track of it.
Having completed this hike on 8 April, five months after creating it, the trail has become quite visible due to frequent use.
As for the red dots, I don't remember seeing any, and yes, there are quite a few cairns, most of which I put there myself.
Take a close look at the photos I posted, and you'll see the three trails starting from ET19, all heading south/east.
Perhaps you confused one of them with the one that actually leads "through large rocks that cannot be avoided"?
But they are worth visiting and full of surprises!
I suggest you do the route in reverse order to the description, as this may make it easier to read the terrain.
Be careful at Baume des Lumes, as the trail junctions can be difficult to see.
If you're using the app, there's no problem.
Good luck, Alain.

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.