4.5
(2)
38
riders
4
rides
Gravel biking around Aulus-Les-Bains is characterized by the rugged terrain of the Ariège Pyrenees, offering significant elevation gains and varied landscapes. The region features challenging mountain passes, dense forests, and river valleys, providing a constantly changing backdrop for rides. High-altitude ponds and hills under 200m are also common features within this mountainous environment.
Last updated: September 27, 2026
4.5
(2)
19
riders
76.6km
05:46
1,890m
1,890m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
41.5km
03:38
1,200m
1,200m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

9
riders
43.2km
03:46
1,360m
1,360m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4
riders
46.2km
03:13
1,140m
1,140m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
25.7km
02:03
730m
730m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Popular around Aulus-Les-Bains
Le col de Port is the first pass I did in the Pyrenees. You can climb it via a regular road (official road), or an even more pleasant small road. And the view at the summit is well worth the climb!
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Functional water source during my visit!
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A heavenly place to enjoy the Pyrenees in their full glory. Ideal for a family picnic in spring or summer. Also, as there is a bar - restaurant, it is ideal if you want to have a drink on the terrace.
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It is a MUST in the Pyrenees, without a doubt, that should be included in any route that crosses the Pyrenees from side to side. Either of its slopes 2 is spectacular and tough. The views from its summit are wonderful, feeling the wild side of the Pyrenees. Of course, once at the summit of this pass... you have to descend to the Étang de Lers and enjoy a peaceful rest on the shores of the lake. It is a pass that has been part of the Tour de France route on several occasions, although always far from the finish line. The first professional rider to crest it in the lead was the unforgettable Marco Pantani in 1995.
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I liked the climb from the north side (from Massat), very scenic and alpine landscapes towards the end at the étang de Lers
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Nice steady and scenic climb to its summit. Good coffee at the arrival (with a view!)
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1
A lovely outing with beautiful weather, beautiful autumn colors, ideal temperatures for the climb, and the cherry on the top was the arrival at the Auberge des Sapinières, a very nice menu to regain strength. An outing to do again 😉👍🚴🚴♂️🚴
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There are 5 gravel bike routes detailed in this guide, all offering challenging rides through the Pyrenees. These routes are designed for experienced riders, featuring significant elevation gains and varied terrain.
The region offers a diverse mix of terrain, from challenging mountain passes and high-altitude ponds to dense forests and river valleys. You'll encounter unpaved segments ideal for gravel biking, alongside some paved sections, all set against the dramatic backdrop of the Pyrenees.
Yes, several routes are designed as loops, allowing you to start and finish in the same location. Examples include the challenging Col de Port – Lers Pass loop from Port de Lers, which covers over 76 km, and the Seix – Mountain views loop from Aulus-les-Bains, offering expansive vistas.
The routes often pass by stunning natural features. You can encounter the impressive Ars Waterfall (Middle), or cycle near high-altitude ponds like Étang de Lers. Mountain passes such as Col d'Agnes and Lers Pass also offer breathtaking views.
All routes in this guide are rated as difficult, catering to experienced riders. For a significant challenge, consider the Col de Port – Lers Pass loop from Port de Lers, which features nearly 1900 meters of elevation gain over 76 km. Another demanding option is the Pic de Risoul – Siguer loop from Val-de-Sos, with over 1300 meters of climbing.
The komoot community rates the gravel biking experience in Aulus-les-Bains highly, with an average score of 4.5 stars. Riders often praise the challenging mountain passes, the stunning natural beauty of the Pyrenees, and the sense of adventure on these demanding routes.
While Aulus-les-Bains is a hub for outdoor activities, public transport options directly to specific, remote trailheads for gravel biking can be limited. It's generally recommended to plan your journey with a vehicle or be prepared for longer rides from the village itself to access the starting points of these mountain-focused routes.
Aulus-les-Bains, as a 'Station Verte,' provides various parking options within the village. For routes starting directly from Aulus-les-Bains, such as the Seix – Mountain views loop, you can typically find parking in or around the village center. For routes starting from nearby locations like Val-de-Sos or Port de Lers, designated parking areas are usually available at those specific starting points.
Yes, Aulus-les-Bains is known for its thermal baths, which offer an excellent opportunity for relaxation and recovery after a challenging gravel bike ride. You can find more information about the thermal spa facilities at tourisme-couserans-pyrenees.com.
The Pyrenees region, including Aulus-les-Bains, is best for gravel biking during the warmer months, typically from late spring through early autumn (May to October). During this period, mountain passes are generally clear of snow, and weather conditions are more favorable for tackling the significant elevation changes and varied terrain. Winter can bring snow and ice, making many routes impassable or extremely challenging.
Yes, the region features several beautiful high-altitude ponds and reservoirs. The Soulcem Reservoir – Étang de Soulcem loop from Val-de-Sos is a prime example, offering scenic views of the reservoir and surrounding mountain landscape. You may also encounter Étang de Lers on other routes, providing serene natural beauty.


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