From Fontainebleau-Forêt to Bois-le-Roi following the blue trails.

This hike is accessible by train, which drops you off in the middle of the forest (Saturdays, Sundays and public holidays). The route mainly follows the Denecourt-Colinet trails, nicknamed "blue trails" because of the colour of their markings. It winds through the undergrowth, far from the wide forest paths, and on several sections, it twists and turns among the rocks.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 11.30 km
  • ◔
    Average duration: 3h 30 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: No
  • ↗
    Ascent: + 99 m
  • ↘
    Descent: - 107 m

  • ▲
    Highest point: 119 m
  • ▼
    Lowest point: 78 m

Photos

Description of the walk

Starting point and access: Fontainebleau-Forêt stop.
- Transilien - Line R, on the section between Paris-Lyon and Montargis (the stop is located between the Bois-le-Roi and Fontainebleau-Avon stations).
N.B. Service to the forest stop is limited (see the practical information section for more details):
~ There is no service on weekdays.
~ It is only served in the direction from Paris to Montargis. Passengers alight at the front of the train, on the gravel platform that serves as the station platform.

Blue signposting

(S) With your back to the railway line, turn left, walk along the railway line on your left and ignore the paths on your right. After about 200 metres, turn left and go under the railway line. On the other side, turn immediately right along the railway line. After about 50 metres, the path turns left into the forest. Follow this path as it winds through the undergrowth. At a junction, go straight ahead.

(1) Cross the road carefully and continue straight ahead on the path marked No. 15 towards Carrefour des Écouettes. At the next crossroads, continue straight ahead. At the end of the path, cross the D138 carefully. On the other side, go through a forest barrier, walk a few metres along a wide path and immediately turn left to follow the marked path.

No markings

(2) At the next junction, leave the marked trail and follow another trail on the left, the Route de l'Hexagone (signposted further on). At the next two junctions, with wider paths, continue straight ahead on the Route de l'Hexagone.

Red and white markings

At the next junction (elevation 86), turn left onto Route de la Biche. At the end, first turn left then right onto Route du Faon. Climb up through a landscape of ferns and small rocks. At the top of the hill, you will reach a small pass.

Blue markings + blue capital letters on some rocks (read the recommendations in the practical information)

(3) Take the path on the right. Pass between rocks X and Y, then leave rock Z on your right. Stay on the path that winds between the trees and rocks, follow the markings carefully and ignore any vague traces on the sides. At clearly marked crossroads, continue straight ahead on the marked path. After a long winding stretch, descend to reach a crossroads with a wide path.

(4) Cross the path and follow trail no. 15, which branches off to the right towards Carrefour des Écouettes and the SNCF train station (where you started the hike).

No markings

At the T-junction, turn left and go up a stony path. This will take you to a small pass.

Blue markings + blue capital letters on some rocks (read the recommendations in the practical information)

(5) Turn right and follow another winding path. Pass at the foot of block G and enter a sort of gorge. Block E requires you to contort yourself and crawl under the rock (this passage can be bypassed). Go around block D and immediately turn right. Then ignore a path on the right and turn left. Pass at the foot of block C on the right and descend.

No markings

(6) At the T-junction, turn right. At the fork after about 100 metres, bear left and walk along a fenced plot on your right. At the next junction, turn left. At the next junction, follow the Route du Mont Saint-Germain to the right. Walk along a fenced-off plot of land undergoing regeneration on your left. After about 100 metres, look for a (legal) opening in the fence.

Blue markings

(7) Go through this opening and head north. Follow a marked path that winds through relatively dense vegetation with abundant ferns. Ignore a path coming from the right (not shown on the map) and pass at the foot of a large oak tree marked with a blue circle. Note a large three-trunk beech tree on the right and find a (legal) opening in the fence. Take this opening and you will immediately come to a crossroads with a path.

(8) Continue straight ahead on the marked path. At the successive crossroads, always go straight ahead. Cross a thinned pine forest (plot no. 221) and then find a denser forest. Climb gently to a crossroads (signpost).

(9) Take the second path on the left (the first is not shown on the 1:25,000 map) towards the Table du Grand Maître. Climb a steep slope to reach the summit of Butte Saint-Louis. Go around the fenced-off archaeological remains on the left. On the southern edge, note the beautiful panorama on the left. At the third corner (western edge x northern edge), turn left and descend. After about 50 metres, look for a trailhead on the right (young oak tree with two trunks).

No markings

Then turn sharply right and continue downhill. Continue along a wider, flat path until you reach a T-junction. Follow the path on the right for about 300 metres.

Blue markings

(10) At the junction, find a marked trail and follow it to the left. At the next junction, continue straight ahead. At a fork, turn left. Then wind your way between a few rocks and reach a trail junction (elevation 100). Turn left towards Rocher de la Pierre Margot. Descend and arrive at Carrefour des Ventes Bouchard (benches).

Red and white markings

(11) Take the third path on the left, Route des Ventes Bouchard. Cross a small tarmac road (no traffic other than ONF vehicles). Continue straight ahead for about 750 m. Then turn right onto Route de la Perlure.

(12) Cross the D138 (with caution, as it is a busy road) and continue straight ahead between garden fences. At the next crossroads, continue straight ahead onto Chemin des Coureurs. At the end, turn left twice and follow Rue Pasteur. After about 150 m, turn right onto the narrow Rue de la Paix. Cross Place de la Gare and you will arrive at the station (E).

To return home:
- Transilien - Line R, towards Melun and Paris-Lyon (direct access) or Montereau or Montargis (take the underground passage).

Waypoints

  1. S : km 0 - alt. 90 m - Halte de Fontainebleau-Forêt
  2. 1 : km 0.95 - alt. 89 m - Crossing the D116
  3. 2 : km 2.01 - alt. 87 m - Trail junction
  4. 3 : km 2.94 - alt. 109 m - Small pass - Crossroads
  5. 4 : km 4.48 - alt. 90 m - Crossroads
  6. 5 : km 4.82 - alt. 114 m - Small pass - Crossroads
  7. 6 : km 5.56 - alt. 85 m - T-junction
  8. 7 : km 6.12 - alt. 83 m - Opening in a fence - Trailhead
  9. 8 : km 6.61 - alt. 84 m - Opening in a fence - Crossroads
  10. 9 : km 7.31 - alt. 101 m - Trail junction - Butte Saint-Louis (Forêt de Fontainebleau)
  11. 10 : km 7.99 - alt. 87 m - Crossroads
  12. 11 : km 8.79 - alt. 85 m - Carrefour des Ventes Bouchard
  13. 12 : km 10.26 - alt. 89 m - Crossing the D138
  14. E : km 11.3 - alt. 78 m - Gare de Bois-le-Roi

Notes

Accessibility by train:
For the outward journey - The Fontainebleau-Forêt stop is only served on Saturdays, Sundays and public holidays. Only the 08:16 and 09:16 trains departing from Gare de Lyon towards Montargis serve this stop. Given the limited length of the platform for disembarking, sit at the front of the train. For more information, see the R line page.
For the return journey - Check train timetables on the Transilien website.

Hiking boots are required. Given the twists and turns in certain sections, the elevation gain is probably underestimated: allow for around 150 m.

No water points identified along the route. Bar-restaurant Place de la Gare in Bois-le-Roi (E).

A 1:25,000 map is required (at least the one accompanying this description) or a route to follow using the Visorando app.

Recommendations concerning the blue-marked trails:
- The Denecourt-Colinet trails, marked in blue, mostly follow paths that wind through the rocks. It is impossible to describe the multiple changes of direction and the description only provides the most important landmarks.
- Consequently, follow the markings closely, as they are dense and well maintained (thanks to the markers!). If you have not seen a marker for some time, do not hesitate to retrace your steps until you find the markings again.
- The markers can be found on three types of supports, at three different heights: (i) on tree trunks at eye level; (ii) on rocks, at the same height or lower; (iii) on the ground, on rocks that are flush with the surface.

Hike completed by the author on 29 May 2022.

Worth a visit

- Pleasant forest trails.
- Rocks.

Reviews and comments

4.3 / 5
Based on 12 reviews

Reliability of the description
4.4 / 5
Ease of following the route
4.2 / 5
Route interest
4.4 / 5
Netra
Netra ★

Hello User 26511020,

I am the author of this hike description. In order to improve the description, could you please let me know where you found the information to be inaccurate? Thank you in advance.

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ChBvt
ChBvt

I disagree with these comments.
Visorando allowed us to walk around in complete peace.
Christophe Bouvet

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User 26511020

Overall rating : 2 / 5

Date of your route : Aug 09, 2025
Reliability of the description : ★☆☆☆☆ Very disappointing
Ease of following the route : ★☆☆☆☆ Very disappointing
Route interest : ★★★★☆ Good
Very busy route : Yes

The information is completely wrong! Luckily we had Google Maps to get us to the station in Bois-le-Roi!!!

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ChBvt
ChBvt

Overall rating : 4.3 / 5

Date of your route : Jun 30, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

no change

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Soph82
Soph82

Overall rating : 4 / 5

Date of your route : May 05, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

An easy and enjoyable walk, with changing landscapes throughout. No elevation gain.

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clarosse
clarosse

Overall rating : 4.7 / 5

Date of your route : Mar 30, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A lovely hike, completed in 3 hours and 25 minutes, including a picnic break!

We loved the winding paths between the rocks. These are also the best spots for a picnic during the hike. The last 2 kilometres are the least interesting, with wide paths and a sparse forest.
There were few people on the trails, and we even saw some deer!

Access to the Saint-Louis hill is not possible due to archaeological excavations. The detour is marked and poses no problem.

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dounette
dounette

Overall rating : 5 / 5

Date of your route : Sep 14, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Thank you for this beautiful route. My first outing with Visorando and I wasn't disappointed! I was a little worried that I wouldn't be able to follow everything, but between the directions and tracking the route, it was perfect, and we managed to disconnect from our phones.

It was magical to get off the train and walk straight into the forest. It made us want to come back and do lots more!

No major difficulties, we wore boots and trainers – no need for hiking boots. A very good Sunday walk with great picnic spots on the rocks.

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Jupille
Jupille

Overall rating : 4.7 / 5

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

A very beautiful route, varied in terms of both scenery and difficulty. Family hike with an 80-year-old lady.
Very detailed and reliable route.
The train stop in the forest is really nice! Lots of people at the start, but they quickly disperse!

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Gar
Gar

Overall rating : 4.3 / 5

Date of your route : Sep 17, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful route, well designed, very pleasant, not many people on the route but we did meet some along the way. Some moments of great beauty.
I must admit that I am a novice; this is the first time I have followed a Visorando route and I realise that you have to pay close attention to the instructions! 50 metres is 50 metres, not 70!

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mangof
mangof

Overall rating : 4 / 5

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

Perhaps not very busy due to the holidays or the uncertain weather.
Nevertheless, the people we met, both on foot and on bikes, were always friendly.

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helleanor
helleanor

Overall rating : 4.3 / 5

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

Excellent description of this hike in the PDF. Well done to the very informative writer.
As for the hike itself, unfortunately we cross some main roads, which means we have to put up with engine noise for much of the walk, not to mention aeroplanes (there must be an aerodrome nearby). This drowns out the birdsong and other animal sounds.

The town of Bois Le Roi is a wonderful discovery, especially the "rue des coureurs" section that leads to the station.

For your information, the "Fontainebleau Forêt" station, known as the "ghost station", is still in service. There is no need to ask the train conductor, as the stop is indicated on the screens inside the train. There is also no need to board the first two carriages, but avoid the last two.

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Hugo H
Hugo H

Overall rating : 5 / 5

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

A beautiful hike, fairly accessible: we had a 5-month-old baby and it went very well (it took us 5 hours rather than 3, but we took our time). Very pleasant passages through the rocks and fern jungles, with paths that are neither too steep nor too wide, except at the end to reach Bois le Roi.
It was also great to go down to the Fontainebleau Forest stop, which has a special feel to it.
However, we modified the route slightly to go via the Cassepot rock and see the view of the canopy/Melun side. Perhaps your itinerary offered a similar view? But just in case, we planned this little detour. Otherwise, I realised that the Fontainebleau forest (but that's not your itinerary's fault!) is still very much criss-crossed by roads, which is a shame, but it's pretty much the same everywhere in the Ile de France region...
In any case, it was a beautiful route, thank you again!

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Guillaume_42_1991
Guillaume_42_1991

Overall rating : 4.7 / 5

Date of your route : Oct 23, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A lovely walk, not too busy, on terrain that wasn't too muddy. Reliable description and beautiful views. It was a lovely walk, thank you.

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Philippe 93
Philippe 93

Overall rating : 5 / 5

Date of your route : Oct 10, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

beautiful sunny hike and lovely route through the rocks

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