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 station.
- Transilien - Line R, on the section between Paris-Lyon and Montargis (the stop is located between Bois-le-Roi and Fontainebleau-Avon stations).
N.B. Services to the forest stop are limited (see further details in the practical information section):
~ It is not served on weekdays.
~ It is only served on the Paris to Montargis route. Passengers alight at the front of the train, on the gravel platform which serves as a 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 branching off to the right. After about 250 m, 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 on.

(1) Cross the D116 with care and continue straight ahead on path no. 15 towards the Carrefour des Écouettes. At the next junction, continue straight ahead. At the end of the path, cross the D138 with care. On the other side, go through a forest gate, walk about fifteen metres along a wide track and immediately turn left to follow the signposted path.

Unmarked

(2) At the next junction, leave the marked path and follow another path to the left, the Route de l'Hexagone (signposted further on). At the next two junctions, where the paths are wider, go straight on along the Route de l'Hexagone.

Red and white markings

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

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

(3) Then 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 the faint tracks on either side. At clearly marked junctions, continue straight on along the marked path. After a long, winding stretch, head downhill to reach a crossroads with a wide track.

(4) Cross the path and follow trail no. 15, which heads diagonally to the right towards the Carrefour des Écouettes and the SNCF stop (where you started the hike).

No markings

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

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

(5) Turn right and follow another winding path. Pass at the foot of boulder G and enter a sort of gorge. Boulder E requires you to contort yourself and crawl under the rock (a passage that can be bypassed). Go round boulder D and immediately turn right. Then ignore a path starting on the right and turn left. Pass at the foot of boulder C on the right and head down.

Unmarked

(6) At the T-junction, turn right. At the fork that appears after about a hundred metres, veer left and follow a fenced-off plot on your right. At the next junction, turn left. At the following junction, follow the Route du Mont Saint-Germain to the right. Walk alongside a fenced-off plot undergoing regeneration on your left. After about a hundred metres, look for an opening in the fence.

Blue markings

(7) Go through this opening and head north. Follow a marked path that winds through relatively dense vegetation where ferns are abundant. Ignore a path coming from the right (not shown on the map) and pass at the foot of a large oak marked with a Blue Circle. Note a large three-trunked beech on the right and find another gap in the fence. Go through this gap and you will immediately come to a junction with a track.

(8) Continue straight on along the marked path. At the successive crossroads, keep going straight on. Cross a thinning pine forest (plot no. 221) then come to a denser forest. Climb gently up to a crossroads (signpost).

(9) Then 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 round the fenced-off archaeological remains on the left. On the southern edge, note the beautiful view to the left. At the third corner (western edge meets northern edge), turn left and head downhill. After about fifty metres, look for the start of a path on the right (a young double-trunked oak).

No signposting

Then turn sharply right and continue descending. Carry on along a wider, level path until you reach a T-junction. Follow the path on the right for about 300 m.

Blue markings

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

Red and white markings

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

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

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

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 - Start of the trail
  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

Access 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 stop at this station. Given the limited length of the platform for alighting, board at the front of the train. For further information, see the R line page.
For the return journey – Check train timetables on the Transilien website.

Hiking boots are required. Given the winding nature of certain sections, the elevation gain is likely underestimated: expect 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 the very least the one accompanying this description) or follow the route using the Visorando app.

Recommendations regarding the blue-marked trails:
- The Denecourt-Colinet trails, marked in blue, mostly follow paths that wind their way through the rocks. It is impossible to describe the numerous changes of direction, and the description provides only the most important landmarks.
- Consequently, follow the markings closely, as they are frequent and well-maintained (thanks to the trail markers!). If you haven’t seen a marker for a while, don’t hesitate to retrace your steps until you find the markings again.
- Markings may 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 exposed rocks.

Hike undertaken 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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