The Sidobre from Lac du Merle

This circuit combines the pleasures of walking with those of a picnic by the water.
The Sidobre rocks are a curiosity worth discovering.
Lac du Merle is a haven of peace and enchantment where you can relax in the summer heat. It is a beautiful spot with rocks rising out of the water, giving you the feeling of walking on air.

Technical sheet

212992
Creation:
Last update:
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  • Walking
    Activity: Walking
  • ↔
    Distance: 13.37 km
  • ◔
    Average duration: 4h 30 
  • ▲
    Difficulty: Moderate

  • ⚐
    Return to departure point: Yes
  • ↗
    Vertical gain: + 246 m
  • ↘
    Vertical drop: - 246 m

  • ▲
    Highest point: 673 m
  • ▼
    Lowest point: 538 m

Description of the walk

Park in the car park opposite the lake, on the opposite side of the D30.

Red and whiteGR®36signposts

(S/E) With your back to the car park, cross the road carefully. Turn right and follow the path that runs along the north side of the lake. When you reach the left-hand corner, turn right onto the path. Continue north. Cross Le Lignon and you will come to a road.

(1) Turn right to cross it and take the wide track that leads to the place called Le Merle.

(2) At the hamlet, the track continues as a path. Cross the Ruisseau de Las Lagues and join thePR® above Las Lagues Hautes.

(3) Continue on theGR®36. ThePR®, which arrives from the left, will be the end of the Sentier des Merveilles, which you will take on the way back. Follow the red and white markings. Pass under high-voltage power lines in an open passage. Stay on the main track and reach the hamlet of Crémaussel.

(4) Cross the road and continue along the track opposite until it ends.

(5) At the fork, take the right-hand path. Explore the Rochers Décalés. Continue your exploration through the Désert and find the Roc de l'Oie.

(6) The red and white markings turn right to reach the Trois Fromages. Continue to the hamlet of Ricard.

Yellow markings

(7) As soon as you enter the hamlet, turn left immediately towards the south. Cross a stream and continue for a few metres.

(8) Go back and forth to the right to see the Chapeau du Curé.

(9) Retrace your steps.

(8) Continue to the right and end up on a road. Follow it to the left, then turn right at the T-junction. Walk to the picnic area at the Croix de Beyriès.

(10) Retrace your steps a little and veer right. Arrive at La Safranière and go around it on the left.

(11) The trail resumes, with its yellow markings, at the exit of the hamlet.

(12) At the fork, about 1.8 km after La Safranière, continue right downhill, pass under the power lines and follow the path to Las Lagues Hautes, where you will rejoin theGR®36.

Red and white markings for theGR®36

(3) Turn right. Retrace your steps to return to the Lac du Merle car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 607 m - Parking - Le Lac Du Merle
  2. 1 : km 0.5 - alt. 599 m - Fork
  3. 2 : km 0.95 - alt. 621 m - Place known as Le Merle
  4. 3 : km 1.94 - alt. 655 m - Crossroads of the loop
  5. 4 : km 3.97 - alt. 654 m - Hameau de Crémaussel
  6. 5 : km 4.1 - alt. 654 m - Fork in the road towards Les Roches Décalées - Les Roches Décalées
  7. 6 : km 5.2 - alt. 661 m - Le Roc de l'Oie
  8. 7 : km 5.88 - alt. 542 m - Hamlet of Ricard
  9. 8 : km 6.67 - alt. 590 m - Intersection after a stream
  10. 9 : km 6.81 - alt. 581 m - Le Chapeau de Curé
  11. 10 : km 8.29 - alt. 583 m - Area - Croix de Beyriès
  12. 11 : km 9.02 - alt. 600 m - La Safranière
  13. 12 : km 10.87 - alt. 666 m - Fork in the road, turn right
  14. S/E : km 13.37 - alt. 606 m - Lac du Merle car park

Practical information

At (10), you can take a lunch break at this spot.
Picnic tables (including a large one under a shelter), grassy areas, toilets and a water point with barbecue facilities are available.

In the nearby area

Lac du Merle for relaxation and picnics.

 Always stay careful and alert while following a route. Visorando and the author of this walk cannot be held responsible in the event of an accident during this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.6 / 5
Based on 28 reviews

Reliability of the description
4.6 / 5
Clarity of route map
4.6 / 5
Route interest
4.6 / 5
User 27982278

Overall rating : 5 / 5

Date of walk : Nov 02, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

A very beautiful hike to do in autumn

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Aigle noir
Aigle noir

Overall rating : 4 / 5

Date of walk : Oct 12, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : No

A beautiful hike, best done during the week if possible as it is much less crowded. The route des merveilles (wonders route) is a must-see; it is best to follow the GPS track.

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User 26300855

Overall rating : 4.3 / 5

Date of walk : Sep 21, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

Very pleasant, shaded route, well signposted, great way to discover the iconic rocks

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nadette53
nadette53

Overall rating : 4 / 5

Date of walk : Aug 31, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : Yes

Very pleasant circuit

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JEANNOT81
JEANNOT81

A beautiful route that takes in most of the highlights of the Sentier des Merveilles trail.

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jmg84
jmg84

Thank you. And thank you especially for this excellent hike, which was really worth it.

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madydou
madydou ★

Hello,
Thank you for your feedback.
I will try to go back and modify the route as soon as possible.

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jmg84
jmg84

Overall rating : 4.7 / 5

Date of walk : Aug 23, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : No

A very pretty hike, almost entirely through woodland. The route includes the Merveilles du Sidobre trail, which is a little busier. However, be careful in the second loop after point 2, as the trail has been disrupted (trees felled, new forest path, etc.) and we were unable to find the route, even off-trail, where it was impossible to avoid the marshes. We had to return via the original route.

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User 19118796

Overall rating : 5 / 5

Date of walk : Aug 10, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

A beautiful route providing access to the many attractions of the Sidobre trail of wonders. In autumn and during heavy rain, be careful of the stream path after the hamlet of Ricard.

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Patrixdemex
Patrixdemex

Overall rating : 4.5 / 5

Date of walk : Jul 22, 2025
Reliability of the description : N/A
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

A beautiful trail that gives you a good idea of what Sidobre is all about. Be sure to stop at the museum/tourist office near Lac du Merle.
If you follow the yellow markings along the trail, you will stray from the author's route between points 5 and 6. Don't worry, you will quickly rejoin the GR36, which you take to the right to reach Roc de l'Oie.
I recommend this route
Thank you for the route

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Patrixdemex
Patrixdemex

Overall rating : 4.3 / 5

Date of walk : Jul 22, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : No

The route is mainly through woodland, with no views. However, it does offer the chance to see numerous granite figures that Mother Nature has scattered here and there to tease our imagination.
After point 5, following the yellow markings, we strayed from the author's route. However, this was no problem as we rejoined the "petite boucle des merveilles" trail a little further on, turning right to find ourselves in front of the Roc de l'Oie, where we rejoined the original route.
The entire route is easy and enjoyable.
Thank you for the trail

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Valda
Valda

Overall rating : 4.7 / 5

Date of walk : Dec 27, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

Pleasant route. No particular difficulties.

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DG46
DG46

Overall rating : 4.7 / 5

Date of walk : Dec 29, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : No

Hike completed on a beautiful winter day.
It allows you to get close to some beautiful granite boulders typical of the Sidobre region.
In summer, it must be very pleasant as most of the route is shaded.
The route is easy to follow.

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La guêpe
La guêpe

Overall rating : 4.7 / 5

Date of walk : Oct 27, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

A real moment of pleasure

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ID81360
ID81360

Overall rating : 5 / 5

Date of walk : Oct 11, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

This hike is not particularly difficult and allows you to discover the Roc de l'Oie, the 3 Fromages, the Chapeau du Curé and the Lac du Merle. You will be immersed in the unique atmosphere of the Sidobre with its omnipresent granite rocks. The route is very shaded, which is an advantage in summer. There are lots of mushrooms in autumn for keen mushroom hunters.

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The GPS track and description are the property of the author. Do not copy them without permission.