5.0
(2)
48
riders
9
rides
Gravel biking around Altsasu/Alsasua offers routes through varied landscapes in the Navarre region. The area features a mix of forested paths, open terrain, and ascents, with routes often traversing natural park areas like Urbasa. Elevation gains are present on many trails, indicating a diverse topography suitable for gravel riding. The region's gravel bike trails provide opportunities to explore both natural and rural environments.
Last updated: July 3, 2026
6
riders
43.0km
02:59
450m
450m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
37.3km
02:57
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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14
riders
49.0km
03:09
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
3
riders
36.0km
02:20
370m
370m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
6
riders
41.2km
03:08
890m
880m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
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Popular around Altsasu/Alsasua
A very beautiful rocky landscape with passages, arches and rock "tables"
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The Ormaiztegi Viaduct (inaugurated on August 15, 1864) is the town's most emblematic symbol. Designed by engineer Alexander Lavalley, a predecessor of Gustave Eiffel, it stands in a beautiful landscape overlooking the Eztanda River. It is the most important structure on the Madrid-Paris railway line, spanning 289 meters in length and 34 meters in height. Its 18,000 tons are supported by four pillars. The double track was installed in 1912 and electrified in 1928. It is currently disused and forms part of the Basque Country's cultural heritage.
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Beautiful, unique beech tree, on the side of the road, perfectly accessible by bike
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Panoramic view of the Valle de Allín.
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Very easy walk to start
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I went in July 2023. This cave is completely closed. There are signs from the Basque government saying DO NOT ENTER (and explaining the consequences and the work they're doing) and plastic tape blocking the entrance. There are lots of constructions tools around too. Don't expect to get in unless you're willing to destroy the small stone wall and all the tape blocking the entrance.
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The Altsasu/Alsasua region offers 9 gravel bike trails, providing a variety of options for exploring the area's diverse landscapes. These routes range from moderate to difficult in terms of challenge.
While many trails in Altsasu/Alsasua feature moderate to difficult grades, some routes offer a good introduction to gravel biking. For example, the Camping Perkasa – Zalamportillo Arch loop from Camping Urbasa is a moderate 23.3-mile (37.5 km) trail that provides varied terrain without extreme difficulty. Another moderate option is the Camping Perkasa – Raso de Ezkiza loop from Eulate, covering 22.4 miles (36.0 km).
Advanced gravel bikers will find several challenging routes with significant elevation gains. The Arbizu Eco-Camping – Camping Etxarri loop from Altsasu-Alsasua is a difficult 31.0-mile (50.0 km) path with substantial climbing. Another demanding option is the Camping Perkasa – Raso de Ezkiza loop from Camping Urbasa, a 26.7-mile (43.0 km) trail known for its difficult grade and exploration of the natural surroundings of Camping Urbasa.
Yes, many of the gravel bike trails in Altsasu/Alsasua are designed as loops, allowing you to start and finish at the same point. Examples include the Camping Perkasa – Zalamportillo Arch loop from Camping Urbasa and the Arbizu Eco-Camping – Camping Etxarri loop from Altsasu-Alsasua, both offering comprehensive circular experiences.
Gravel biking in Altsasu/Alsasua is characterized by a mix of forested paths, open rural landscapes, and moderate climbs. You'll encounter varied terrain, often traversing natural park areas like Urbasa, with elevation gains present on many trails, reflecting the region's diverse topography.
The region offers several notable attractions. You might pass near the historic San Adrián Tunnel or enjoy views from the vicinity of Aizkorri Summit (1,523 m). Many routes also explore areas around Camping Perkasa, a key starting point for several tours.
Yes, the Altsasu/Alsasua area is home to beautiful water features. You can find the Tobería Waterfalls and the Andoin Waterfall, which are popular highlights in the region. The Source of the Urederra River is also a significant natural attraction nearby.
The best time for gravel biking in Altsasu/Alsasua generally spans from spring through autumn. During these seasons, the weather is typically more stable and pleasant, making for ideal riding conditions. While winter riding is possible, be prepared for colder temperatures and potentially wet or snowy conditions, especially at higher elevations.
Many routes in the Altsasu/Alsasua area start from locations with accessible parking, such as near Camping Urbasa or Altsasu-Alsasua itself. Specific parking details are often available on individual route pages on komoot, so it's recommended to check the tour details for your chosen route.
The gravel bike trails in Altsasu/Alsasua are highly rated by the komoot community, with an average score of 5.0 stars from 2 reviews. Over 45 gravel bikers have used komoot to explore the varied terrain, often praising the diverse landscapes and the opportunities to connect with nature.
The Altsasu/Alsasua region's gravel trails often traverse natural park areas like Urbasa, meaning there's a significant overlap in the type of terrain and natural beauty you'll experience. Altsasu/Alsasua serves as a gateway to many routes that explore the Urbasa-Andia Natural Park, offering similar forested paths, open terrain, and ascents characteristic of the wider Urbasa area.


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