4.5
(74)
473
riders
25
rides
Mountain biking around Errenteria offers diverse terrain, from the granite intrusions of Aiako Harria Natural Park to the scenic paths along the Oiartzun River. The region features mountainous landscapes, including the San Marcos and Txoritokieta Mountains, providing varied elevation and viewpoints. Riders can explore a network of trails that traverse forests, river courses, and open areas, catering to different skill levels. This combination of natural parks and varied topography makes Errenteria a compelling destination for mountain biking enthusiasts.
Last updated: June 23, 2026
8.95km
01:01
290m
290m
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.6
(15)
107
riders
36.5km
03:43
940m
940m
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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3.8
(13)
58
riders
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(11)
57
riders
27.9km
02:46
800m
800m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.5
(2)
33
riders
23.7km
01:50
560m
560m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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At least 40mm tires for the gravel sections!
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Beautiful and famous asphalt climb. But did you know you can also reach it via beautiful gravel roads on the other side? See for yourself: https://www.youtube.com/watch?v=QfokyRRdlTk
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An incredible view - but the summit is not particularly clearly marked.
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Jaizkibel summit at 547m, superb viewpoint over the Basque coast.
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Mythical crossing in Oiartzun. Sorondo, on the left you go up to Zaria and on the right you go to the Irubidieta intersection.
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Although now only a few ruins remain of what once was, a castle once stood here. There is now an area with picnic tables, ideal for stopping for lunch. If you get here by one of the trails that arrive, a little before you will also pass by a small pond.
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One of the mythical ports of Basque cycling, as it forms part of the Clásica San Sebastián route and is one of the key places to decide the classification of this race. On the Hondarribia slope, the first kilometers are on a gentle slope and through a chestnut forest. Arriving at the sanctuary of the Virgin of Guadalupe is the fountain of the same name. The last three kilometers are the hardest. At the crown you can continue to the antennas, barely a kilometer with percentages between 11 and 14%. The Lezo slope begins with three very hard kilometers, with various horseshoe curves and ramps of more than 11%. Upon reaching the Arrokaundieta hostel, the slope softens until it reaches the top.
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Errenteria offers a diverse network of over 25 mountain bike trails. These routes cater to various skill levels, ranging from easy paths along the river to challenging mountain ascents.
Mountain biking around Errenteria features highly varied terrain. You'll encounter mountainous landscapes, including the granite intrusions of the Aiako Harria Natural Park, as well as scenic paths along the Oiartzun River. The trails traverse forests, river courses, and open areas, offering a mix of climbs, descents, and flatter sections.
Yes, Errenteria has options for beginners. There are 5 easy mountain bike routes available, such as the dedicated cycling path along the Oiartzun River towards Arditurri, which offers a more accessible and family-friendly option. This greenway is well-connected to the urban center via bike lanes.
Absolutely. For experienced riders, Errenteria offers 11 difficult mountain bike routes. These trails often involve significant elevation changes and technical sections. An example is the San Marcos and Txoritokieta Loop, which is 5.6 miles (9.0 km) long and offers panoramic views from San Marcos mountain.
Many trails in Errenteria offer stunning viewpoints. The San Marcos and Txoritokieta Loop provides impressive vistas from San Marcos mountain. Another route, the Jaizkibel Pass – Jaizkibel Summit loop from Lezo-Rentería, offers stunning panoramas over the Bay of Hendaye and the Atlantic coast from Jaizkibel mountain. You can also visit the View of the Mouth of Pasaia Bay (Pasaiako Bokalea) or the View from Monte Urgull for more scenic outlooks.
Yes, many of the mountain bike routes in Errenteria are circular, allowing you to start and end at the same point. Examples include the Irubideta Forest Path – Malbazar Pass loop from Fanderia, a challenging 22.7 miles (36.5 km) route, and the Santa Bárbara Dorrea Viewpoint – Txurizketa Gaina Stone Tower loop from Galtzaraborda, which is 16.8 miles (27.0 km) long.
For families, the cycling path along the Oiartzun River towards Arditurri is an excellent choice. This 'greenway' is generally flat and accessible, providing a pleasant ride through natural surroundings. It's well-connected to Errenteria's urban center via bike lanes, making it easy to access.
While many natural areas in the Basque Country are dog-friendly, specific regulations can vary by trail and natural park. It's always best to check local signage or the specific trail's guidelines before heading out with your dog, especially within protected areas like Aiako Harria Natural Park, where some areas may have restrictions.
The mountain bike trails around Errenteria are highly rated by the komoot community, with an average score of 4.3 stars from over 60 reviews. Riders often praise the diverse terrain, the challenging climbs, and the rewarding panoramic views from mountains like San Marcos and Jaizkibel.
Yes, the region offers several natural attractions. You can find highlights like the Endara-San Anton Reservoir or the Giant Sequoia of Domiko Lake. These can be interesting detours or destinations for a more relaxed ride.
Errenteria's connectivity, including public transport options and bike lane networks, enhances its appeal for mountain bikers. The bike lanes often lead directly to greenways like the Arditurri Greenway, making it convenient to start your ride without needing a car.
Yes, bike rental services are available in the broader region around Errenteria, making it convenient for visitors who don't bring their own equipment to access the trails and explore the diverse landscapes.


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