4.4
(173)
1,879
riders
128
rides
Mountain biking around Arantza offers a diverse landscape characterized by rolling hills, dense woodlands, and river valleys. The region features a network of trails that navigate through varied terrain, including forested paths and open sections with elevation changes. Mountain bike routes often include climbs and descents, providing a range of challenges for riders.
Last updated: May 10, 2026
2.5
(2)
4
riders
25.6km
02:54
820m
820m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
2.0
(1)
3
riders
31.2km
03:26
900m
900m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.8
(8)
94
riders
53.5km
04:23
1,050m
1,050m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.5
(6)
61
riders
42.8km
03:52
1,080m
1,080m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.6
(20)
242
riders
46.4km
02:51
480m
480m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Next to it is a whitewater kayak training area.
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Tip top lake for a picnic break, be careful when we arrived the water level was low in the middle of summer, but not too many mosquitoes and plenty of shade to rest by the water
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the crossroads allowing you to go in different directions while offering a panorama of the valley
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It is a vital infrastructure for the water supply to San Sebastián. Located in a protected natural environment, it is distinguished by its impressive landscape and rich biodiversity. If you visit the area, it is definitely worth stopping to admire its stunning beauty.
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This was one of the most prominent forges in the region until the 19th century. Today, you can still recognize the potential it had during its period of operation. The old and new bridges, along with other buildings such as the mill, the workers' house and the dam, attest to this.
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Small land "beach" on the lake, perfect for taking a break in the shade of the trees and at the water's edge
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It is one of the bridges on the route. It is preferable to use a flashlight inside, since there is not good lighting. On some occasions there are water leaks, which gives it a more interesting point when crossing it.
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Recommended to bring lights. The longest tunnel, despite having light sensors, often does not work. Be careful that there were landslides on the shore.
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There are over 130 mountain bike trails around Arantza, offering a wide range of options for different skill levels. This includes 8 easy routes, 36 moderate routes, and 87 difficult routes, ensuring there's a suitable path for every rider.
Yes, Arantza offers 8 easy mountain bike trails perfect for beginners or those looking for a relaxed ride. These routes typically feature less challenging terrain and elevation changes, allowing new riders to enjoy the scenic landscapes comfortably.
The terrain around Arantza is diverse, characterized by rolling hills, dense woodlands, and river valleys. Trails often navigate through forested paths and open sections, featuring a mix of climbs and descents. You'll encounter varied surfaces, from dirt tracks to more technical sections, providing a dynamic riding experience.
While many routes in Arantza are rated moderate to difficult, the 8 easy trails are generally suitable for families with some mountain biking experience. These routes offer a gentler introduction to the region's beautiful scenery without overly challenging technical sections or steep climbs.
For experienced riders seeking a challenge, Arantza has numerous difficult routes. One such option is the Dam and Tunnel on the River – Bisusto Waterfall loop from Igantzi, which spans over 61 km and includes significant elevation changes. Another demanding route is the Elutxa – Zumarreko Gailurra Junction loop from Igantzi, covering nearly 35 km with substantial climbing.
Yes, some trails in the region pass by beautiful natural attractions. For instance, the Dam and Tunnel on the River – Bisusto Waterfall loop from Igantzi takes you past the Bisusto Waterfall. You can also find the stunning Aitzondo Waterfall near some of the routes, offering a picturesque stop.
The mountain bike trails in Arantza are highly regarded by the komoot community, holding an average rating of 4.4 stars from over 170 reviews. Riders frequently praise the diverse landscapes, the challenging climbs, and the immersive experience of riding through dense forests and river valleys.
Many of the mountain bike routes around Arantza are designed as loops, allowing you to start and finish at the same point. Examples include the Dam and Tunnel on the River – Bisusto Waterfall loop from Igantzi and the Elutxa – Zumarreko Gailurra Junction loop from Igantzi, providing convenient options for your ride.
The best time for mountain biking in Arantza is typically during spring, summer, and early autumn. These seasons offer more stable weather conditions, drier trails, and pleasant temperatures, making for a more enjoyable riding experience through the region's forests and hills.
Beyond the trails, Arantza is surrounded by interesting natural and historical sites. You can explore the San Juan Xar Cave Shrine or the Filón de San Joaquín Cave. For panoramic views, consider visiting summits like Muganix Summit (758 m) or Ibanteli, which are accessible via hiking trails or nearby roads.
Many mountain bike routes in Arantza offer stunning viewpoints, particularly as you gain elevation through the rolling hills. The dense woodlands often open up to reveal expansive vistas of the surrounding valleys and mountains. While specific viewpoints vary by trail, the region's topography ensures plenty of scenic opportunities.


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