4.6
(24)
441
riders
27
rides
Gravel biking around Bun features routes through the Pyrenees mountains, characterized by significant elevation changes, mountain passes, and scenic valleys. The terrain includes a mix of paved and unpaved roads, often leading to high-altitude viewpoints and past alpine lakes. This region offers challenging climbs and descents, with routes winding through forested areas and open mountain landscapes.
Last updated: July 3, 2026
4.7
(3)
66
riders
59.2km
05:20
1,590m
1,590m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
20
riders
31.1km
03:08
900m
900m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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15
riders
76.5km
06:54
2,250m
2,250m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.3
(3)
17
riders
39.0km
03:35
1,180m
1,180m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
49
riders
82.0km
06:35
2,600m
2,610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A gentle, narrow climb. From the west, the gradient is consistently high, with no respite. The asphalt is in good condition on both sides, making it easy to descend as well.
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Nice climb, few cars, be careful on the descent, the asphalt is smooth but the grip is not the best, moreover some bends close. A great champion fell here during a TdF.
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Beautiful spot on the greenway: in addition they left the toilets functional with toilet paper, and also a drinking water point: perfect!
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A very nice climb. Be careful because there's a steep section. Check the altitude.
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Strenuous climb from the west side, but all easily manageable!
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0
Beautiful collar, do all three sides and become a baroness or baron
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0
There are over 30 gravel bike trails around Bun, offering a variety of experiences through the Pyrenees mountains. The komoot community has explored these routes over 500 times.
Gravel biking in Bun features routes through the Pyrenees mountains, characterized by significant elevation changes, mountain passes, and scenic valleys. The terrain includes a mix of paved and unpaved roads, often leading to high-altitude viewpoints and past alpine lakes. You'll encounter challenging climbs and descents, with routes winding through forested areas and open mountain landscapes.
While the majority of routes in Bun are rated as difficult, there is at least one route classified as easy. Most trails involve significant elevation changes and challenging sections, making them more suitable for experienced gravel bikers.
The region offers stunning natural beauty. You can find highlights such as the serene Lac d'Estaing, the panoramic Soulor Panorama, and various mountain passes like Col du Soulor and Spandelles Pass. These often provide breathtaking views of the surrounding Pyrenees.
Yes, many of the gravel bike routes around Bun are designed as loops. For example, you can explore the Soulor Panorama – Soum Lake loop from Argelès-Gazost, the Soum Lake – Col du Soulor loop from Arrens-Marsous, or the Railroad cycle path near Argeles – Cauterets loop from Argelès-Gazost.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 30 reviews. Riders frequently praise the extensive mountain panoramas, the challenging climbs and descents, and the diverse terrain that includes mountain passes and alpine lakes.
One of the longer and more challenging routes is the Spandelles Pass – Col du Soulor loop from Arras-en-Lavedan, which covers approximately 82 kilometers (51 miles) with significant elevation gain.
Yes, the Railroad cycle path near Argeles – Cauterets loop from Argelès-Gazost is a popular option that incorporates a former railroad path, offering varied terrain and a unique riding experience.
Given the mountainous terrain and high-altitude passes, the best time for gravel biking in Bun is typically from late spring through early autumn (May to October). During these months, the weather is generally more stable, and snow has usually cleared from higher elevations, making the passes accessible.
Most gravel trails in Bun are rated as difficult due to significant elevation changes and challenging terrain, which may not be ideal for young children or casual family rides. For dogs, leash laws and specific trail regulations can vary, so it's advisable to check local guidelines for the specific area you plan to visit. The focus on mountain passes suggests a more strenuous experience.
Absolutely. Routes like the Soulor Panorama – Soum Lake loop from Argelès-Gazost and the Soum Lake – Col du Soulor loop from Arrens-Marsous offer direct views of Soum Lake, providing beautiful waterside scenery during your ride.


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