4.9
(73)
5,280
riders
6
rides
Road cycling around Lac de Caillaouas, situated in the Hautes-Pyrénées, offers diverse terrain within a high-alpine environment. The broader region features challenging mountain passes, winding roads through forests, and wild plateaus. While the lake itself is at 2,160 meters and primarily accessed by hiking trails, the surrounding area provides varied road cycling routes with significant elevation changes. This protected natural zone is characterized by rugged mountainous backdrops and deep valleys.
Last updated: July 4, 2026
4.8
(13)
705
riders
39.4km
02:34
1,190m
1,190m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(8)
1,393
riders
88.2km
06:05
2,840m
2,840m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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5.0
(5)
569
riders
64.3km
04:19
2,040m
2,040m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.9
(14)
479
riders
42.8km
02:45
1,200m
1,200m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.8
(14)
461
riders
26.9km
01:45
800m
800m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Beautiful view over the last 5 km of the ascent to the Col de Peyresourde (east side).
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I ride this pass once a month by mountain bike since November 2025, this pass is closed to cars because of the snow but what a chance to see deer and does running in the snow. 😉
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Beautiful bends with a really nice view of neighbouring Port de Bales
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Beautiful views of Val Louron and over to the High Pyrenees from the Col
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Beautiful village on your way up Peyresourde
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The road cycling routes in the Lac de Caillaouas area are predominantly challenging, characterized by significant climbs and descents through high-mountain terrain. While there are options for different ability levels, the majority of routes are rated as difficult, appealing to experienced cyclists seeking a physical challenge.
You can expect substantial elevation changes, as the region is known for its high mountain passes and winding roads. For instance, routes like the Peyresourde Pass – Port de Balès loop from Germ feature over 2,000 meters of ascent. Even moderate routes, such as the Lake Génos – Peyresourde Pass loop from Germ, include over 800 meters of climbing.
Yes, while many routes are difficult, there are moderate options. For example, the Lake Génos – Peyresourde Pass loop from Germ is a moderate 27.7 km route that includes an ascent to a notable mountain pass. Another moderate option is the Lake Génos – Arreau loop from Loudervielle, covering 31.3 km with over 450 meters of elevation gain.
The region offers breathtaking high-mountain landscapes. You'll encounter deep blue alpine lakes like Lac de Caillaouas itself (though not directly accessible by road bike), towering peaks, rocky slopes, and deep gorges such as the Clarabide gorges. Winding roads often provide panoramic views of the Pyrenean landscape, including snow-capped mountains in the distance.
The area is highly rated by the komoot community, with an average score of 4.9 stars from over 40 reviews. Cyclists frequently praise the challenging mountain passes, the stunning high-mountain atmosphere, and the spectacular routes through the classified site of the high valley of Louron.
Yes, several routes are designed as loops, allowing you to start and finish in the same location. Examples include the Peyresourde Pass – Port de Balès loop from Germ and the Lacets de Peyresourde – Peyresourde Pass loop from Gouaux-de-Larboust, both offering a complete circular experience.
Given the high-mountain environment, the best time for road cycling is typically from late spring through early autumn (roughly June to September). During these months, mountain passes are generally clear of snow, and weather conditions are more favorable. Always check local weather and road conditions before heading out, as high-altitude areas can experience rapid changes.
Yes, the region is well-connected to iconic Pyrenean passes. Routes like the Col du Portet (2,215 m) – Col de Val Louron-Azet loop from Loudervielle directly incorporate significant climbs. The Col de Peyresourde is a prominent feature in several routes, including the Lake Génos – Peyresourde Pass loop from Germ.
While specific parking details for every trailhead are not provided, starting points for many routes are often in villages within the Louron Valley, such as Germ, Gouaux-de-Larboust, or Loudervielle. These villages typically offer public parking facilities suitable for accessing the cycling routes. It's advisable to check local village information for designated parking areas.
The Louron Valley, where many of these routes begin or pass through, has several villages like Loudervielle and Arreau. These villages offer various amenities, including cafes, restaurants, and accommodation options such as hotels, guesthouses, and mountain refuges like the Refuge de la Soula, which can serve as stopover points for longer trips.
Yes, in the broader Louron Valley and surrounding towns like Loudenvielle and Arreau, you can find sports shops and rental services that offer road bikes, including electric road bikes. It's recommended to book in advance, especially during peak season.
Generally, no specific permits are required for road cycling on public roads in the Hautes-Pyrénées. However, always respect local traffic laws and be aware of any seasonal road closures, especially for high mountain passes, which can occur due to snow or adverse weather. For general information on outdoor activities in the region, you can visit Lourdes Infotourisme.


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