5.0
(2)
35
riders
8
rides
Gravel biking around Olazti/Olazagutía offers diverse terrain within the Barranca region and Burunda Valley, set against the foothills of the Sierra de Urbasa in Navarra, Spain. The area is characterized by extensive forests, predominantly native beech and oak trees, covering over 60% of its surface. Riders will encounter unique geological features, including karst landscapes and the expansive Urbasa-Andia Natural Park, providing varied routes. The Vía Verde del Plazaola, a significant greenway, features long stretches of gravel track, making it ideal…
Last updated: May 22, 2026
6
riders
43.0km
02:59
450m
450m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
37.5km
02:57
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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13
riders
50.0km
03:13
580m
580m
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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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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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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There are 8 gravel biking routes around Olazti/Olazagutía. These trails offer a mix of moderate and difficult options, catering to various skill levels.
The terrain is diverse, featuring extensive native beech and oak forests, karst landscapes, and the expansive Urbasa-Andia Natural Park. Many routes, like the Vía Verde del Plazaola, offer long stretches of 95% gravel track, making them ideal for gravel and XC bikes. You'll traverse a mosaic of forests, pastures, valleys, and mountains, often including tunnels.
The gravel biking routes in Olazti/Olazagutía are highly rated by the komoot community, with an average score of 5.0 stars. Over 30 gravel bikers have used komoot to explore the varied terrain, often praising the challenging rides through the region's natural environment.
Yes, the region is rich in natural beauty. You can find stunning panoramic vistas from the Ikuspegia Viewpoint within the Urbasa-Andia Natural Park. The park also features the captivating Enchanted Forest of Urbasa. Some routes may pass near the fascinating Aizkorri Summit or the San Adrián Tunnel.
Yes, the area is home to several beautiful waterfalls. The Tobería Waterfalls are a series of picturesque cascades hidden within a beech forest, particularly impressive after rainfall. You can also find the delicate natural monument of the Source of the Urederra River and the Andoin Waterfall in the vicinity.
For a challenging ride through the natural park, consider the Camping Perkasa – Raso de Ezkiza loop from Camping Urbasa. This difficult 43.0 km (26.7 miles) route takes about 3 hours 31 minutes to complete and explores the varied landscapes surrounding Camping Urbasa.
Yes, many of the gravel routes in Olazti/Olazagutía are designed as loops. For example, the Arbizu Eco-Camping – Camping Etxarri loop from Altsasu-Alsasua is a difficult 50.0 km (31.0 miles) circular path that connects two campsites, offering a challenging ride through the region's natural environment.
Yes, there are moderate options available. The Camping Perkasa – Zalamportillo Arch loop from Camping Urbasa is a moderate 37.5 km (23.3 miles) trail that leads through the Urbasa Natural Park, typically completed in about 3 hours 27 minutes. Another moderate choice is the Camping Perkasa – Raso de Ezkiza loop from Eulate, which is 36.0 km (22.4 miles).
The region's lush landscape, with its extensive forests, makes it enjoyable across multiple seasons. Spring and autumn offer pleasant temperatures and vibrant scenery, with waterfalls being particularly impressive after rainfall. Summer provides longer daylight hours, while winter might present unique challenges or quieter trails, especially at higher elevations in the Sierra de Urbasa.
While specific public transport links directly to trailheads are not detailed, Olazti/Olazagutía is a municipality in Navarra, Spain. It's advisable to check local bus schedules or regional transport options that connect to the town or nearby villages, which may offer access points to the wider network of trails.
The Urbasa Campsite is known to cater to cyclists and offers services for exploring the Urbasa Natural Park by bicycle, suggesting it could be a suitable starting point with parking facilities. Additionally, many routes start from or pass through towns like Altsasu-Alsasua, where public parking options are generally available.
Yes, the Urbasa Campsite is a notable hub for cyclists, offering a dedicated center with services for road, gravel, and mountain biking. This includes downloadable routes, which can be very helpful for planning your rides in the Urbasa Natural Park.


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