4.4
(18)
151
riders
5
rides
Gravel biking around Sentenac-De-Sérou offers diverse terrain within the Pyrénées Ariégeoises Regional Natural Park. The area features mountainous landscapes, verdant valleys, and rolling foothills, providing varied routes for cyclists. Significant elevation changes, with altitudes ranging from 492m to 1,615m, ensure challenging and engaging gravel biking experiences. The region's natural features include demanding mountain passes and tranquil roads, suitable for no traffic gravel bike trails.
Last updated: July 6, 2026
4.9
(11)
67
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
35
riders
142km
07:29
1,050m
1,050m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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16
riders
55.2km
03:00
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
10
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
64.2km
04:48
1,510m
1,510m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Sentenac-De-Sérou
I climbed it from its easier side, the one that starts from Foix and stretches for 28 kms, crossing the Col de Marrous. It's a steady climb, with a few tough kilometers, and very pleasant. It's the side used by the Tour de France to descend it. The best thing about the Mur de Peguère are the views from its summit.
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I can only speak about my experience descending it from the south side, the one that starts in the village of Biert. It's simply a great pass, with a very tough final section, very similar to its close brother Mur de Peguère. With hardly any traffic, it has the appeal that the road is very narrow and very winding, which helps mentally.
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Be careful, since yesterday, June 19th, the descent to Rivèrenert has been freshly graveled and dangerous. I had a rear puncture due to small, sharp gravel sticking to the tire when braking. So, don't go crazy on this descent, friends.
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Because around 12pm and >31°C, the climb from Biert is mostly in the shade, and this pass generally ends a series of small linked passes (like Portech, Catchaudégué or La Core, Saraillé, etc.). And the challenge of the last 3 km is worth experiencing to strengthen your mental strength. Get to your pedals
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Old little station that reminds us of another time!
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This is the longest tunnel on the greenway: it's super fun to go through. Be careful: it's a bit chilly!
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There are 4 dedicated no-traffic gravel bike trails listed in this guide for the Sentenac-De-Sérou area. These routes offer a range of distances and difficulties, allowing you to explore the stunning landscapes of the Pyrénées Ariégeoises Regional Natural Park without vehicle interference.
The terrain around Sentenac-De-Sérou is diverse, ranging from verdant valleys to mountainous sections. You'll encounter a mix of gravel paths, greenways, and potentially some challenging climbs over 'cols' (mountain passes) that are free from vehicle traffic. The region's significant elevation changes, from 492m to 1,615m, ensure varied and engaging rides.
Yes, for a longer adventure, consider The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop from Castelnau-Durban. This route spans over 80 km and features a moderate elevation gain, offering an extensive journey through the region's car-free paths.
The routes often pass through the beautiful Pyrénées Ariégeoises Regional Natural Park. You might encounter highlights such as the Couserans region, various mountain passes like Col de la Crouzette (1245 m), and serene lakes like Lac de Mondély. The area is also known for its dramatic 'Cirque d'Anglade' and the source of the Arize river.
Yes, several routes are designed as loops. For example, The tunnels of Véloroute 81 – Old Rimont Station loop from Castelnau-Durban offers a moderate 32 km circular ride. Another option is Col de la Crouzette (1245 m) – Old metal bridge loop from Cadarcet, which is a more challenging 64 km loop.
The best time for gravel biking in the Pyrénées Ariégeoises is generally from spring through autumn. During these seasons, the weather is more stable, and the trails are typically dry and accessible. Summer offers warm temperatures, while spring and autumn provide cooler rides and vibrant natural colors.
While many routes in the region feature significant elevation, the greenway sections of the Véloroute 81 offer flatter, more accessible terrain suitable for families. Look for routes that specifically mention 'greenway' or 'voie verte' for a gentler experience, though specific family-friendly routes starting directly from Sentenac-De-Sérou are not explicitly highlighted in this guide.
Parking is typically available in the towns and villages where these routes start. For example, routes like The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop and The tunnels of Véloroute 81 – Old Rimont Station loop start from Castelnau-Durban, where you can usually find parking facilities.
Many natural areas in France, including regional parks, are generally dog-friendly, especially on marked trails. However, it's always best to keep your dog on a leash and ensure they are well-behaved, particularly when encountering wildlife or other trail users. Check local regulations for specific restrictions within the Pyrénées Ariégeoises Regional Natural Park.
The no-traffic gravel routes around Sentenac-De-Sérou vary in difficulty. This guide features 1 moderate route and 3 difficult routes. For instance, Old Rimont Station – The tunnels of Véloroute 81 loop from Castelnau-Durban is rated as difficult, involving significant elevation changes, while The tunnels of Véloroute 81 – Old Rimont Station loop from Castelnau-Durban is moderate.
Sentenac-De-Sérou itself is a small commune, but nearby towns like La Bastide-de-Sérou, Seix, and Saint-Girons offer a range of cafes, restaurants, and accommodation options. These towns are also known for their local markets, providing opportunities to experience regional life and cuisine.
The area is highly rated by the komoot community, with an average score of 4.9 stars. Reviewers often praise the tranquility and natural beauty of the car-free paths, the challenging yet rewarding climbs, and the stunning panoramic views of the Pyrénées Ariégeoises.


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