Between Senlisse and Cernay-la-ville

A hike that allows you to discover centuries-old chestnut trees.

Details

2725108
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 6.60 km
  • ◔
    Average duration: 2h 05 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 64 m
  • ↘
    Descent: - 66 m

  • ▲
    Highest point: 175 m
  • ▼
    Lowest point: 106 m

Description of the walk

The car park is located on the D91 road, very close to Moulin des Roches.

(S/E) Take the path that leads away from the road and is marked by the signpost "Route de Cernay".

(1) Follow the path on the right that goes uphill.

(2) Leave the main path and take the second path on the right. The plot number "18" is marked on a tree. 100 metres further on, take a path on the right that climbs very steeply. At the top of the hill, continue straight ahead and keep heading east-southeast.
When you reach the D149 coming from Senlisse, go through a forest gate, cross the road and turn right onto the D906.

(3) Turn left towards Chevreuse and follow the road carefully for about 150 metres, then take a path on the left and go through a forest gate. Pass a small sewage treatment plant on your left and walk alongside the fields on your right.

(4) At the boundary marker, turn slightly left onto the path that does not descend. Be careful, as it can be particularly muddy. Cross a wood where you can admire some very old chestnut trees and join the Côte Brûlée forest road.

(5) Turn left and continue down the gentle slope of this forest road. Cross several paths, one of which is marked with a sign saying "Les Maréchaux". Continue to the D149.

(6) Cross the road carefully, passing through the forest road barriers. Continue on the path opposite, which is marked by a sign for "Route forestière de Bois Boisseau". At the next junction, continue straight ahead.

(2) Turn right towards the Bouillons farm. Then take the first path on the left.

(1) Continue on the right to return to the car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 113 m - Moulin des Roches car park
  2. 1 : km 0.19 - alt. 113 m - Crossroads of the circular loop
  3. 2 : km 0.39 - alt. 122 m - Crossroads - A: right R: right
  4. 3 : km 1.75 - alt. 173 m - Junction of the D906 and D149
  5. 4 : km 3.01 - alt. 168 m - "Terres de Malvoisine" marker
  6. 5 : km 3.49 - alt. 162 m - RF hairpin bend on the Côte Brûlée
  7. 6 : km 4.58 - alt. 125 m - D149
  8. S/E : km 6.6 - alt. 112 m - Moulin des Roches car park

Notes

Access to the car park at the start.

Coming from Rambouillet, cross the D24 which runs alongside the Vaux de Cernay. The car park is located approximately 700 m on the right.
Coming from Dampierre, take the D91 and drive through the hamlet of Garnes. The road takes a sharp left turn when you reach the Étang du Moulin des Roches. The car park is located 200 m on the left.

(2) Fairly steep slope. Good footwear recommended.

Worth a visit

Reviews and comments

4.6 / 5
Based on 8 reviews

Reliability of the description
4.9 / 5
Ease of following the route
4.8 / 5
Route interest
4.3 / 5
jean-pierre.aizac
jean-pierre.aizac

Overall rating : 4.5 / 5

Date of your route : Mar 23, 2026
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A lovely, easy route through the woods. The route is likely to be very muddy in wet weather.

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catherine dhelens
catherine dhelens

Overall rating : 5 / 5

Date of your route : Jun 23, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

One of my favourite walks in the area. Very pleasant in hot weather as it is shaded by the forest. Diverse landscapes, crossing a pretty stream and passing by a delightful pond (sometimes frequented by dog walkers, which is understandable).
Be careful when crossing the road, though.
The very end of the hike (GR trail that runs alongside the road) is not cleared of brush, so watch out for nettles and brambles if you're wearing shorts. Enjoy your walk!

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Ayla32
Ayla32

Overall rating : 4.7 / 5

Date of your route : Feb 25, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A very pleasant route, on terrain that is accessible to almost everyone.
Be careful not to miss junction no. 2, otherwise it is easy to follow the signs.

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decphil
decphil

Overall rating : 4 / 5

Date of your route : Jul 10, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

An easy forest hike. I combined it with the "Between Senlisse and Choisel" hike, otherwise it's a bit short.

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jpm0
jpm0

Overall rating : 5 / 5

Date of your route : Mar 20, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant and varied route. I would just have replaced "easy" with the level above to alert people looking for less rugged terrain. There are two climbs that may surprise those with weaker joints...

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Eric7845
Eric7845

Overall rating : 5 / 5

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

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pidobeliou
pidobeliou

Overall rating : 4.3 / 5

Date of your route : Feb 21, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average
Very busy route : No

A lovely walk in the forest, very quiet despite the car park at the start being full. The paths are still a little muddy in places, but it's still fine.
Magnificent oak trees (the "rabbit king"!) between points 5 and 6.
It's a shame that section 3 to 4 is spoiled by the roaring motorbikes revving their engines on the nearby road, drowning out the noise of the planes at Toussus...
In any case, it's a beautiful, easy walk for this spring Sunday in February.

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PROVOST
PROVOST
• Edited:

Overall rating : 4.3 / 5

Date of your route : Dec 19, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good

Part of the terrain is quite muddy at this time of year, and the condition of the path is made worse by the fact that it is frequently used by horse riders.

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