From the Tarn to Puech Mergou

Starting from Les Avalats on the banks of the Tarn, climb up to the agricultural plateau towards Cunac and then head back east towards Marsal through the woods on the left bank of the Tarn.
After the Puech Mergou farm, the return journey is downhill through the woods towards the river and then along the riverbank on a path isolated from the D172.
The route is poorly signposted. The use of GPS is recommended.

Details

2294136
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 16.90 km
  • ◔
    Average duration: 6h 00 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 410 m
  • ↘
    Descent: - 402 m

  • ▲
    Highest point: 350 m
  • ▼
    Lowest point: 172 m

Description of the walk

Park in the car park on the banks of the Tarn on the Chemin de la Plage, under the plane trees.

(S/E) Head towards the Auberge des Avalats via the Allée de la Nougarède. Continue to the Chemin du Port crossroads.

(1) Turn right towards the church via Chemin du Port.
Cross the D172 with caution, climb up towards the old village (keep) and reach theGR®36at the crossroads, which you should follow up onto the plateau towards Le Truel.

(2) Leave theGR®36on your left, cross the Conté farm and the D77 (caution). Continue straight ahead to reach Cabrillac.

(3) Cross Cabrillac and continue along the small road. At the crossroads, turn right and then immediately left towards Pontésiè, a suburb of Cunac.

(4) On the road, turn left and then left again at the corner of a house onto a grassy path: thePR® Sentier des deux Vallons. Follow this path to Autanet.

(5) Turn left onto the road to Saurat.

(6) Turn left onto a rural road to join theGR®36, follow it to the left until you reach the D77.
Take this road to the right for about 300 m. Caution: very busy road, continue to a metal barrier at the edge of a vineyard.

(7) Walk along the vineyard towards the waste collection centre and enter the woods on a track halfway down the hill (the entrance to the path is not very visible). Follow this path to a vineyard at the edge of the woods.

(8) Go around the vineyard on the left on three sides, then return to the edge of the woods on the left.

(9) Re-enter the woods via a wide track and follow it to the exit, where it becomes a small tarmac road.

(10) At the crossroads, turn left onto the road: rejoin theGR®36, continue to the right along a grassy path leading up through the fields. At the crossroads (country cross), turn left onto the road.

(11) Leave theGR®36opposite and continue to the right. Cross the Sirventié.

(12) On the descent, at the edge of the woods, take the path on the left that goes downhill (the entrance to the path is not very visible). Follow this path until you reach a junction with theGR®36: follow it to the right downhill. Continue on the path, turning left at each junction, including theGR®36which descends to Marsal below.

(13) When you reach a clearing, go up to the left along a rural path that leads to the Puech Mergou farm.

(14) Follow the small road to the left to La Brandié and turn right. Cross the hamlet of Le Tour and continue towards Le Bez.

(15) Continue along a grassy path that descends and then turns into a forest track to the Tarn.

(16) Cross the D172 via a pedestrian tunnel. Follow the path between the river and the road along the retaining wall.

(17) The path along the river ends: cross the D172 and, after a short return to the left, take a good path in the woods parallel to the road that leads to the Avalats water sports centre.
Cross the D172 and follow the edge of the Tarn to the initial crossroads.

(1) Continue along the same route as on the way out to return to the car park by the Tarn (S/E).

Waypoints

  1. S/E : km 0 - alt. 173 m - Parking on the banks of the - Tarn (rivère)
  2. 1 : km 0.16 - alt. 173 m - Crossroads of the circular loop
  3. 2 : km 1.08 - alt. 264 m - Opposite towards Conté
  4. 3 : km 1.53 - alt. 269 m - Cabrillac Farm
  5. 4 : km 2.63 - alt. 243 m - La Pontésiè
  6. 5 : km 3.46 - alt. 265 m - Autanet
  7. 6 : km 4.2 - alt. 275 m - Saurat: rural path
  8. 7 : km 5.43 - alt. 275 m - Metal barrier
  9. 8 : km 6.68 - alt. 296 m - Vineyard border
  10. 9 : km 7.48 - alt. 294 m - Descent into the woods
  11. 10 : km 8.87 - alt. 327 m - GR36
  12. 11 : km 9.96 - alt. 347 m - La Sirventié
  13. 12 : km 10.24 - alt. 343 m - Trail junction
  14. 13 : km 11.72 - alt. 300 m - Clearing
  15. 14 : km 12 - alt. 336 m - Puech Mergou farm
  16. 15 : km 13.54 - alt. 317 m - Grassy crossroads
  17. 16 : km 14.81 - alt. 187 m - Cross the D172 via a tunnel.
  18. 17 : km 15.42 - alt. 181 m - Cross the D172 on the left.
  19. S/E : km 16.9 - alt. 173 m - Parking on the banks of the Tarn

Notes

Note: This route is a longer version of the hike already published in Visorando.
There are numerous parking spaces at the start of the route along the Tarn, with toilets nearby.
At the end of the walk, you can refresh yourself at the Auberge des Avalats (open during the summer season).
Some sections of the trail in the woods may be slightly overgrown.

Worth a visit

Crossing the medieval village of Les Avalats: keep and conical slate roof.

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

4.3 / 5
Based on 8 reviews

Reliability of the description
4.3 / 5
Ease of following the route
4.3 / 5
Route interest
4.5 / 5
jab31
jab31

Overall rating : 4.7 / 5

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

Hello,

I did this route again after a few years to check the reviews by jppuech and cath2703 from January and February 2024.

I don't understand these negative comments that discourage potential walkers! Because you can walk everywhere! Including between points 12 and 13 and the climb to Puech Mergou. It's a wide, clear forest path. Of course, there are tractor tracks, but they're easy to avoid!

And yet it's December, after a period of rain! Muddy patches don't prevent you from hiking in winter!

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Pascal81
Pascal81

Overall rating : 3.7 / 5

Date of your route : Dec 05, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

We did part of this hike, from point 1 to point 16, then cut across along the Saumes stream, via a path that appears on the maps, to arrive between points 9 and 8, then returned to point 1, covering approximately 8 km. We found that on sections 1-17-16 and then 8-7-2-1, the markings were virtually non-existent. No problem, though, as the paths are open, so you just need to follow your GPS.

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jab31
jab31

Hello,

Thank you for these details. It's true that from point 12 onwards, the trail is rather wild, but that's what makes it interesting!
It's a shame that the trail along the Tarn below the road is becoming overgrown!
That's why it's important to use these trails to keep them open!
Jab31

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Alanax
Alanax

Overall rating : 4.7 / 5

Date of your route : Aug 15, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful, varied hike through meadows, fields, forests and along the banks of the Tarn, with lovely views. There is little road traffic, just small wild paths and beautiful trails.
The elevation gain is well distributed throughout the route, with the climbs taking place in the woods.
I was a little apprehensive about passing the waste disposal site (not exactly a dream location!), but you get through it very quickly (you don't see much of it and you can't smell anything) and the path that branches off to the right is well marked.
I cut between points 2 and 7 to make it only 13.5 km.
There are beehives between points 8 and 9, but a very pleasant path that enters the woods and runs along the field allows you to avoid them.
The path between 12 and 13 is passable, as work on the GR36 has been completed. However, it is worth checking in case of heavy rain, as the ground appears to be slippery.
After point 14, when you turn right, you need to leave the road a little further on by taking the grassy track that branches off to the left and follow this track, which turns right at Le Truel (so you don't cross the hamlet, you leave it on your left).
From point 15 onwards, the track is little used, so nature is reclaiming its rights, but it's still passable. There are a few brambles on the small path that continues along this track (and lots of blackberries).
On the banks of the Tarn, the path is overgrown with grass (perhaps soon to be impassable?). It's a shame because it would be very pleasant.

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jppuech
jppuech
• Edited:

Overall rating : 4.7 / 5

Date of your route : Feb 26, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

We confirm that the path is impassable (ruined by tractor tracks) between points 12 and 13. You have to turn around and go back up towards La Brandié. It's a shame that a GR trail has been made impassable! Beyond that, the hike is very pleasant and easy. The trail is fine, but do not rely on the markings as it follows several different paths. Some sections may be muddy.

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cath2703
cath2703

Overall rating : 3.7 / 5

Date of your route : Jan 26, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

Path impassable after point 12 (from the junction with the GR36) and point 14.
A 20 cm layer of soft mud across the entire width of the path has caused falls.
Recent rainfall combined with the passage of heavy agricultural machinery has made this section impassable.
In winter (rainy season and sowing season), I recommend cutting across and taking the GR 36 to La Brandié and not going via Puech Mergou.

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hcrando
hcrando

Overall rating : 3.7 / 5

Date of your route : Mar 25, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A pleasant and easy hike, but one that requires the use of a GPS. There are few markings and the description is not detailed enough to find your way, especially in the woods.

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ALBIJOIE
ALBIJOIE

Overall rating : 5 / 5

Date of your route : May 02, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Lovely walk with beautiful views. Thank you for the route.

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jean didier
jean didier

Overall rating : 4.7 / 5

Date of your route : Jul 04, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Hello,
A very pleasant walk, without any major difficulties. The point where you need to pay attention is number 7. When you arrive at the waste collection centre, leave the "rubble" on your left and follow the "terre" sign straight ahead, keeping an eye out for the tiny, barely visible path (as it wasn't very busy when we were there) on the right that leads into the woods. The GPS was very helpful. Then there is a very beautiful section through the woods and, overall, a varied walk that we really enjoyed.
Thank you again to all the contributors to the site for these great ideas for walks and hikes.
Jean Didier...

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