4.7
(201)
15,404
riders
63
rides
Road cycling routes around Castillon-De-Larboust are situated in the Larboust Valley, within the high mountain terrain of the central Pyrenees. This region features significant elevation changes, with peaks exceeding 3,000 meters and valleys starting around 660 meters. The landscape is characterized by challenging mountain passes, ancient glacial valleys, and a diverse ecosystem of beech and fir forests, alongside expansive pastures.
Last updated: July 4, 2026
5.0
(1)
219
riders
50.7km
03:28
1,730m
1,730m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(4)
107
riders
44.6km
02:22
810m
810m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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5.0
(1)
134
riders
39.0km
02:34
1,200m
1,200m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
45
riders
112km
05:44
1,920m
1,920m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
28
riders
119km
05:54
1,710m
1,710m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Castillon-De-Larboust
A beautiful transitional port between the Le Ger river valley and the Garonne river valley
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Beautiful port with a French side heavily covered by forest
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The Col du Portillón is a short but intense mountain pass that connects the Aran Valley to France via a narrow, shady road through forests. Its ascent, with its pleasant slopes, is highly appreciated by local and professional cyclists.
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This climb should not be underestimated, the last 4km are steep and give no break
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Col du Portillon should not be underestimated. Although not as famous as its neighbouring cols, this col is hard and steep, specially on the last km
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Nice start of the descent to Val d’Aran
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Col dur Portillon should not be underestimated, from Luchin it is short but the last 4km are hard and give no break
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There are over 55 road cycling routes around Castillon-De-Larboust. These include 4 easy routes, 25 moderate routes, and 26 difficult routes, offering a wide range of options for all skill levels.
Castillon-De-Larboust is nestled in the French Pyrenees, offering dramatic landscapes and significant elevation changes, with peaks exceeding 3,000 meters. The region is renowned for its legendary climbs and mythical passes, such as the Col de Peyresourde and Col du Portillon, providing a challenging and rewarding experience for road cyclists.
Absolutely. The region is famous for its demanding mountain passes. Routes like the Col d'Aspin – Peyresourde Pass loop from Garin, covering 94.1 km with over 2,400 meters of elevation gain, offer significant challenges. The ascent to Luchon-Superbagnères is another iconic climb known for its difficulty and breathtaking views.
While many routes are challenging, there are options for beginners. The area features 4 easy routes and 25 moderate routes that allow for scenic rides without extreme difficulty. These routes often explore the lower valleys and offer a gentler introduction to Pyrenean cycling.
The routes often pass through areas of remarkable natural heritage. You might encounter features like the Vallée du Lis, the dramatic Cascade d'Enfer, or the imposing Cirque and Pic des Crabioules. The southern part of the commune also features high-altitude lakes such as Lac Bleu and Lac Vert, offering serene spots for a break.
Yes, many of the popular road cycling routes in Castillon-De-Larboust are loops. For example, the Portillón Pass – Bagnères-de-Luchon loop from Garin is a 38.7 km difficult trail, and the Col des Ares – Buret Pass loop from Garin is a longer 111.8 km option, both offering a complete circular experience.
The road cycling routes in Castillon-De-Larboust are highly rated by the komoot community, with an average score of 4.7 stars from over 170 reviews. Cyclists frequently praise the challenging mountain passes, the stunning panoramic views, and the diverse natural landscapes encountered along the way.
The best season for road biking in Castillon-De-Larboust is typically from late spring to early autumn (May to October). During these months, the weather is generally more stable, and the high mountain passes are clear of snow, offering optimal conditions for cycling. Summer provides longer daylight hours, while autumn offers cooler temperatures and vibrant foliage.
Many routes in the region are known for their spectacular views. The Col de Peyresourde offers panoramic vistas, and the ascent to Luchon-Superbagnères rewards cyclists with incredible mountain scenery of the Pyrenean valleys. The high-altitude lakes also provide picturesque settings.
Many road cycling routes in the Castillon-De-Larboust area, particularly those starting from villages like Garin or Cazeaux-de-Larboust, offer designated parking areas. It's advisable to check specific route details on komoot for information on parking availability at the trailhead.
While iconic passes can attract many cyclists, the extensive network of routes in the Pyrenees allows for exploration of less-traveled roads. Opting for routes that venture into smaller valleys or less famous passes can often lead to a more tranquil cycling experience, especially during off-peak hours or seasons.
Yes, the region is home to several beautiful waterfalls. The Cascade d'Enfer on the Enfer stream is a notable feature within the commune. While not always directly on the road, some routes offer views or access points to these natural wonders, such as the Trail from Granges d'Astau to Lac d'Oô and the Waterfall.


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