Around the Vallières Regional Forest

A short circuit to discover beautiful panoramic views of the Jablines outdoor recreation centre, the banks of the Marne and the Dhuis promenade in Dampmart.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 10.15 km
  • ◔
    Average duration: 3h 10 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 95 m
  • ↘
    Descent: - 95 m

  • ▲
    Highest point: 124 m
  • ▼
    Lowest point: 40 m

Photos

Description of the walk

This hike starts at the Carnetin cemetery car park. You can get there by car or public transport.

Leave the car park and head right (south-east) towards the crossroads about 100 metres away.
At the crossroads (1), cross the small square with the cross (beautiful view of the Jablines outdoor activity centre) and turn left onto the path that goes downhill.
Cross the D418 departmental road and continue straight ahead on the path until you reach a small road (2). Turn left and, after about 50 metres, turn right onto a path that will take you to the Marne (3).
Turn right and follow the Marne in the direction of the current.
You will pass through abandoned orchards and run alongside the Vallières Regional Forest.
At the edge of the forest, continue along the path beside the Marne for about 300 metres. Then turn right and after about 100 metres you will come to a track crossing a large field (4).
Continue straight ahead on this track (yellow markings) which climbs to a crossroads (5) where you turn right to enter the forest.
The path winds between the trees and, at the edge of the forest, crosses a small paved road (6).
Continue straight ahead on the path, which now separates two fields, until you reach the Promenade de la Dhuis, easily recognisable by its two tracks separated by a grassy central reservation (7). Then turn right and follow this promenade.
Walk along the Promenade de la Dhuis, cross the first road and you will come to the D105A road (8), which you cross.
From here, you can see the red and whiteGR® trail markers.
Continue along the Promenade de la Dhuis for about one kilometre. When you reach two contemporary-style timber-framed houses (9), turn right and go up the sunken lane blocked by two metal arches.
At the junction with the D105A, you have arrived. The cemetery car park is on your right.
.

Waypoints

  1. S/E : km 0 - alt. 124 m - Carnetin cemetery car park
  2. 1 : km 0.15 - alt. 122 m - Square
  3. 2 : km 0.66 - alt. 59 m - Road, left, right
  4. 3 : km 0.91 - alt. 42 m - Rive - Marne (la)
  5. 4 : km 4.16 - alt. 49 m - Field
  6. 5 : km 4.72 - alt. 82 m - Enter the forest
  7. 6 : km 5.75 - alt. 124 m - Edge of the Forest
  8. 7 : km 6.26 - alt. 115 m - La Dhuis
  9. 8 : km 8.95 - alt. 114 m - D105A
  10. 9 : km 9.98 - alt. 115 m - Wood-framed houses
  11. S/E : km 10.15 - alt. 124 m - Carnetin cemetery car park

Notes

Wear hiking boots: the ground can be slippery on the descent to the Marne.

Public transport to the starting point: https://www.transdev-idf.com/

Worth a visit

 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

4.5 / 5
Based on 47 reviews

Reliability of the description
4.5 / 5
Ease of following the route
4.7 / 5
Route interest
4.3 / 5
Sofigrou
Sofigrou

Overall rating : 4.7 / 5

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

A fairly easy and enjoyable hike. We completed it in 2 hours and 25 minutes.
Very easy to follow with the app.
There were few if any people on the trail, which was quite nice.
The weather was nice, but the paths near the river were muddy in places (nothing too bad though!)

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User 26222297

Overall rating : 4.3 / 5

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

Hike completed yesterday. We didn't know this area and really enjoyed it, nestled between the Marne, the forest and bathed in sunshine.
We followed the written guide with the map, but 2-3 places were clearly unclear, which meant we had a little extra climb in the sun. ;-)
Nevertheless, walking along the Marne and enjoying several shaded sections in the forest was really lovely, and we ended up having a picnic high up with a view of the Marne and Jablines, among other things.
Thank you.

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mdre
mdre

Overall rating : 4.3 / 5

Date of your route : Jun 09, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Despite it being a bank holiday Monday, we didn't see many people. This walk is nice, but it's more of a stroll than a hike and is very easy.
The route is well described, there are no difficulties, and the village of Carnetin is really interesting in terms of its history. It was a battlefield during the wars of 1870 and 1914. Painters and writers came here to escape the capital and write, and not just any writers... there used to be vineyards... Worth discovering.

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Prisca77
Prisca77

Overall rating : 4.7 / 5

Date of your route : Mar 17, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

We had a great time!

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CLERC
CLERC

Overall rating : 5 / 5

Date of your route : Nov 20, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

I started and finished my hike at the DAMPMART gym because there is a car park there. The hike was very pleasant along the aqueduct on the Carnetin side, then joining the GR15 on the left, further on in Carnetin there is a beautiful viewpoint. Along the Marne it was muddy, which was to be expected given the time of year and the recent rain. We passed the sculpted marl to climb back up the aqueduct and arrive at the gymnasium. Total distance: 15 km.

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Arujin
Arujin
• Edited:

Overall rating : 4.7 / 5

Date of your route : Oct 30, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

practised last week:
Amazing views of the Marne
it had rained heavily and the course was muddy
The signposting was not very clear
there were walkers and mountain bikers on a small section of the route, but then we were on our own.

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Kris28
Kris28
• Edited:

Overall rating : 4.3 / 5

Date of your route : Aug 26, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

We had a lovely walk with our two boys. We saw a deer, a vole, lots of frogs and a small grass snake.

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akaim
akaim

Overall rating : 5 / 5

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

A very pleasant walk at the end of June, between the river, the forest and the fields.
At point 2, I turned left and after a kilometre, I turned right to reach the banks of the Marne and arrive at point 3: this adds 2 km.
Thank you!

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amostini
amostini

Overall rating : 5 / 5

Date of your route : Apr 05, 2023
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful and very varied walk. Magnificent views of the Marne. Benches along the Marne. Worth doing again

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mariaxa
mariaxa

Overall rating : 5 / 5

Date of your route : Apr 03, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful, varied walk that is enjoyable and not difficult

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FBZardoz
FBZardoz

Overall rating : 5 / 5

Date of your route : Sep 04, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very pleasant short loop with a mix of forest, fields and the banks of the Marne. The only downside on Sunday was the motocross bikes that disturbed the peace and quiet of the area! Apart from that, it was a very enjoyable ride.

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Malibou
Malibou

Overall rating : 4.3 / 5

Date of your route : Aug 22, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful hike, especially the first part along the Marne River and the Vallières Forest. We encountered few people, except on the Dhuis section during the second half of the hike.
The description is pretty good, the only downside being the section on "timber-framed houses", which doesn't seem to correspond to anything...

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curutchet
curutchet

Overall rating : 4 / 5

Date of your route : Apr 26, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Beautiful views of the Jablines base
A bit noisy (quad bikes) but everyone is allowed to walk around

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grandin
grandin ★

Unfortunately, you will need to check with the local council, but every time I have tried to raise this issue in various localities, either I have never received a reply to my emails or I have been told, "We are aware of the problem but we cannot monitor it all the time."

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Milan Catérina
Milan Catérina

Overall rating : 3.3 / 5

Date of your route : Dec 20, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★☆☆☆ Disappointing
Very busy route : Yes

A DISASTER!!!
The Vallières forest has become a playground for motocross bikes and quad bikes...
The paths are torn up, muddy , and full of ruts filled with water.
The dozen or so motorcycles we came across were making a deafening noise and it was impossible to walk in peace.
It's a real shame because the area is really beautiful with a superb view of the Jablines ponds....
What can be done to stop this noise pollution and ecological disaster?

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