4.4
(116)
2,070
riders
173
rides
Mountain biking around Zerain offers a diverse landscape characterized by rolling hills, dense forests, and notable summits. The region features varied terrain, including challenging ascents and descents, with routes often traversing through natural parks and rural areas. Elevation gains are significant on many trails, providing a robust experience for mountain bikers.
Last updated: October 20, 2026
4.5
(2)
19
riders
49.1km
03:04
580m
580m
Moderate mountain bike ride. Good fitness required.
5.0
(3)
15
riders
35.2km
03:04
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.

12
riders
32.9km
03:01
900m
900m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
14
riders
24.7km
02:16
630m
630m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
7
riders
108km
06:54
1,320m
1,320m
Hard mountain bike ride. Very good fitness required.
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On the descent from Dorrontsorogana. It's a crossroads of tracks.
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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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Azpeitia is very far from Navarra.
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Segura was founded by Alfonso Currently, its historic center is a magnificent example of traditional architecture.
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If you like sheep cheese, you are in the right place. Idiazabal is the headquarters of the shepherds' council that brings together the producers of the famous cheese of the same name. Here you can visit the Idiazabal cheese museum and learn much more about this dairy delicacy.
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The Mirandaola park is a haven of the history of Basque iron. It is home to the old traditional forge where you can see how iron was worked in the 19th century. In addition, there are various buildings and structures where iron is the protagonist.
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The beautiful building of the old Urola de Azcoitia train station is currently used as a library. One of its rooms is decorated with old railway sleepers. In the back there is a bike mechanic and washing station.
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There are over 180 mountain bike trails around Zerain, offering a wide range of options for different skill levels and preferences. The region's diverse landscape includes rolling hills, dense forests, and notable summits.
The mountain bike trails around Zerain are highly rated by the komoot community, with an average score of 4.4 stars from over 100 reviews. Riders often praise the varied terrain, challenging ascents, and the opportunity to explore natural parks and rural areas.
Yes, Zerain offers some mountain bike trails suitable for beginners. There are 12 easy routes available, providing a gentler introduction to the region's varied terrain. These trails typically feature less challenging climbs and descents.
For advanced riders seeking a challenge, Zerain has 97 difficult mountain bike trails. A notable option is the Otzaurte Fountain – San Adrián Mountain Refuge loop from Zegama, which covers 46.6 km with over 1200 meters of elevation gain. Another demanding route is the Azpeitia Town Hall – Azpeitia Railway Museum loop from Brinkola, a very long 106.1 km trail with significant elevation.
While many trails in Zerain feature significant elevation gains and challenging terrain, there are easier options that can be more suitable for families. Look for routes categorized as 'easy' to find paths with less demanding climbs and descents, allowing for a more relaxed family outing.
The best time for mountain biking in Zerain is generally during the spring and autumn months when the weather is milder and the natural scenery is at its most vibrant. Summers can be warm, and winters may bring colder temperatures and potentially wet conditions, especially at higher elevations.
Yes, many mountain bike trails around Zerain are designed as loops, allowing you to start and end at the same point. For example, the Idiazabal – Segura loop from Segura is a moderate 24.5 km trail that takes about 2 hours 15 minutes to complete.
Mountain bike trails in Zerain often offer expansive views of the surrounding landscape, including rolling hills, dense forests, and distant summits. Routes like the Elortxiki – Abaranotz Summit (851 m) loop from Zegama provide challenging climbs rewarded with panoramic vistas.
Yes, the Zerain area is rich in natural and cultural attractions. You can explore the historic San Adrián Tunnel, visit the impressive Arantzazu Sanctuary, or even challenge yourself to reach the Aizkorri Summit (1,523 m). These can be great additions to your mountain biking trip.
Access to mountain bike trails in Zerain primarily relies on personal transport due to the rural nature of many starting points. While some larger towns nearby may have public transport connections, reaching specific trailheads often requires driving. It's advisable to check local transport schedules if you plan to use public transport.
Parking availability varies by trailhead. Many routes start from or pass through villages and towns like Idiazabal, Zegama, or Segura, where you can typically find public parking areas. For more remote trailheads, roadside parking might be an option, but it's always recommended to check specific route details or local signage.


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