4.6
(19)
145
riders
14
rides
Gravel biking around La Bastide-De-Sérou offers a network of trails through the varied landscapes of the Ariège region. The area features greenways, former railway lines converted into cycling paths, and routes that traverse river valleys and foothills. Terrain includes sections with tunnels and viaducts, providing diverse riding experiences. The region's gravel bike trails range from moderate to difficult, catering to different skill levels.
Last updated: July 5, 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.
4.7
(3)
14
riders
Moderate gravel ride. 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.
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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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A very beautiful viaduct, it's a bit impressive and truly unusual on a greenway. The train used to go there, now the bikes go there!
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Beautiful little station, testimony to another time!
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Beautiful cycle path with this passage over this railway bridge which is pleasant: we're off to a good start on the greenway!
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Hello everyone, I'm from Ariège, I decided this year to do the greenway with my dog Emy in both directions. It's a very beautiful walk, however there are some black points: lack of stone benches to deter potential thieves, and on the other hand the large Rimont tunnel which is 803 m long there is no more light. The motion detector does not work. Luckily that day I had my flashlight with me. There is horse excrement everywhere, perhaps one day we will have to ask the riders to pick up their droppings. It's a very beautiful walk.
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Small railway bridge, it's worth the detour, it's old!
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There are over a dozen gravel bike trails available around La Bastide-De-Sérou, offering a variety of experiences through the Ariège region's diverse landscapes.
While many routes are challenging, there are a few moderate options. For example, the Foix – Vernajoul Viaduct Greenway loop from Saint-Martin-de-Caralp is a moderate 20.7-mile (33.3 km) trail that can be completed in about 2 hours 26 minutes, offering a good introduction to the area's greenways.
The gravel bike trails in this region are characterized by greenways, former railway lines, river valleys, and foothills. You'll encounter varied terrain, including sections with tunnels and viaducts, providing a diverse riding experience.
Yes, advanced riders will find several challenging, longer routes. The Foix–Saint-Girons Greenway – Foix loop from Rimont is a difficult 87.7-mile (141.2 km) path, following the extensive Foix–Saint-Girons Greenway and offering significant distance and elevation.
Along the gravel routes, you can explore several interesting sites. The The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop from Castelnau-Durban features sections with tunnels. You might also encounter natural monuments like the Grotte du Mas-d'Azil or the scenic Lac de Mondély in the wider region.
Many of the gravel bike trails in the area are designed as loops. For instance, the popular The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop from Castelnau-Durban is a circular route, as is the The tunnels of Véloroute 81 – Old Rimont Station loop from Castelnau-Durban.
The Ariège region, including La Bastide-De-Sérou, generally offers pleasant conditions for gravel biking from spring through autumn. Summers are warm, while spring and fall provide milder temperatures and beautiful scenery. Winter riding is possible but may require checking local weather and trail conditions, especially at higher elevations.
The area is highly rated by the komoot community, with an average score of 4.9 stars from over 20 reviews. Riders often praise the varied terrain, the unique experience of riding through tunnels and past viaducts, and the well-maintained greenway sections.
Yes, several routes provide substantial climbing. The Foix – Vernajoul Viaduct Greenway loop from Serres-sur-Arget, for example, is a difficult 47.8-mile (76.9 km) route with over 600 meters of elevation gain, offering a good workout and rewarding views.
While the immediate gravel routes focus on greenways and valleys, the broader region of Ariège is known for its mountain passes. You can find highlights like the Col de la Crouzette or the Péguère Pass nearby, which can be incorporated into longer, more challenging rides or explored separately.
Ride durations vary significantly based on the route and your pace. Shorter, moderate loops like the Foix – Vernajoul Viaduct Greenway loop from Saint-Martin-de-Caralp can take around 2.5 hours, while longer, difficult routes such as the Foix–Saint-Girons Greenway – Foix loop from Rimont can extend to over 9 hours.


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