4.7
(56)
1,393
riders
6
rides
No traffic road cycling routes around Esplas-De-Sérou are situated within the Ariège Pyrenees Regional Natural Park, offering a diverse landscape for cyclists. The region features varied topography, including forests, river valleys, and quiet back roads. Cyclists can navigate through areas characterized by both challenging mountain terrain and gentler routes, providing a range of experiences amidst the Pyrenean foothills.
Last updated: July 6, 2026
5.0
(1)
33
riders
58.0km
02:44
770m
770m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
10
riders
17.8km
01:06
410m
410m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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3
riders
40.3km
02:14
650m
650m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
5.0
(1)
6
riders
34.5km
02:21
1,020m
1,020m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
4
riders
31.7km
01:37
480m
480m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Popular around Esplas-De-Sérou
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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A magnificent spot with the road winding under the rock, running alongside a partially underground stream. It's both breathtaking and peaceful. Plus, there's a starting point for a short walk; I did the beginning and it was lovely: I'd love to come back and do a longer section!
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A very peaceful route with beautiful views and landscapes
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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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This is the longest tunnel on the greenway: it's super fun to go through. Be careful: it's a bit chilly!
1
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Beautiful cave and at the northern exit there is even a waterfall and another picnic area (in the shade, more for summer, in winter we prefer to picnic at the southern exit!)
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A place full of charm: a unique cave with the road passing under the rock: you have to go through it, and go through it again!
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There are 3 dedicated no-traffic road cycling routes around Esplas-De-Sérou featured in this guide. These routes offer a peaceful cycling experience away from vehicular traffic, allowing you to fully enjoy the stunning Pyrenean landscapes.
The terrain around Esplas-De-Sérou is diverse, ranging from rolling hills to more challenging ascents. While the region is known for its challenging mountain passes, these specific no-traffic routes offer a mix. For example, the Grotte du Mas-d'Azil and Lac de Mondély Loop includes some significant elevation gain, while other sections might be gentler, especially on dedicated greenways.
Yes, the region offers sections of the "Voie Verte" (greenway) between Foix and Saint-Girons, which is a paved, traffic-free path built on a former railway line. While not explicitly listed as a full route in this guide, it provides an excellent, gentle option for families or those seeking a very relaxed ride with magnificent views. You can find sections of this greenway, such as Foix–Saint-Girons Greenway, which are ideal for a family outing.
The no-traffic routes around Esplas-De-Sérou offer opportunities to discover various natural features and landmarks. You can explore the impressive Grotte du Mas-d'Azil, a unique cave system, or enjoy the tranquility of Lac de Mondély. Some routes also pass through picturesque river valleys and offer views of the Ariège Pyrenees Regional Natural Park. You might also encounter sections of the tunnels of Véloroute 81, which are part of the greenway network.
While focusing on no-traffic, some routes still offer a good challenge. The Lac de Mondély – Le Bascou loop from Le Mas-d'Azil is rated as difficult, covering over 82 km with more than 1100 meters of elevation gain. This route provides a substantial workout while minimizing interaction with vehicle traffic.
The Ariège Pyrenees region is generally best for cycling from spring through autumn. During these seasons, the weather is typically mild, and the landscapes are vibrant. Summer offers long daylight hours, while spring and autumn provide cooler temperatures and fewer crowds. Winter cycling can be challenging due to colder temperatures and potential snow at higher elevations, though lower sections might still be accessible.
Yes, all the routes featured in this guide are circular, allowing you to start and end at the same point. For instance, the Col de Saraillé – Biert Village loop from Biert offers a moderate circular ride, perfect for exploring the local area without retracing your steps.
Parking is generally available in the villages and towns near the starting points of these routes, such as Le Mas-d'Azil or Biert. As the region is less populated, finding parking is usually not an issue, especially in designated village parking areas. Always check local signage for any restrictions.
The komoot community highly rates the cycling experience around Esplas-De-Sérou, with an average score of 4.2 stars. Cyclists often praise the tranquil environment, the stunning natural beauty of the Ariège Pyrenees Regional Natural Park, and the variety of terrain available. The quiet roads and courteous drivers also contribute to a safe and enjoyable cycling environment.
While these routes prioritize a no-traffic experience, they often pass through or near small villages where you can find local cafes or bakeries. It's always a good idea to carry sufficient water and snacks, especially on longer routes like the Couserans region – Pont Vieux de Saint-Girons loop from Erp, as services might be sparse between villages. Planning your stops in advance is recommended.
The routes vary in length to suit different preferences. The shortest route, the Col de Saraillé – Biert Village loop from Biert, is approximately 17.8 km. For a longer ride, consider the Lac de Mondély – Le Bascou loop from Le Mas-d'Azil, which spans over 82 km.


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