4.2
(126)
9,055
riders
94
rides
Road cycling around Zerain is characterized by its mountainous landscape within the Goierri region of Gipuzkoa, Basque Country. The terrain features winding roads, significant elevation changes, and lush forests, providing a challenging environment for cyclists. Routes often traverse through verdant meadows and offer panoramic views of peaks and rural villages. This setting provides diverse gradients and curves, making it suitable for varied road cycling experiences.
Last updated: November 4, 2026
5.0
(1)
108
riders
77.6km
04:28
1,830m
1,830m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
3.0
(1)
155
riders
45.9km
01:59
380m
380m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

77
riders
33.8km
01:58
780m
780m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
59
riders
28.2km
01:22
340m
340m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
34
riders
24.2km
01:06
220m
220m
Easy road ride. Mostly well-paved surfaces and easy to ride.
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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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Segura was founded by Alfonso Currently, its historic center is a magnificent example of traditional architecture.
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The lords of Igartza built this service center in the 16th century and increased their wealth. This magnificently preserved monumental complex, in addition to the palace-house of the lords, has: a hermitage, a mill, a forge, an apple press, a dovecote, the shoemaker's house and the blacksmith's house, among others. The visit is worth it.
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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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Next to the Mirandaola park is the old forge of the same name, which has currently been converted into an ethnographic museum. You can book your visit through this link: https://lenbur.com/es/museos/ferreria-de-mirandaola/.
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Zegama is a municipality in the Goyerri region, in the province of Guipúzcoa, Basque Country. It is located at the foot of the Aitzgorri mountain range, in the upper basin of the Oria River, in the middle of a historic pass that linked the Iberian Peninsula with continental Europe. The Zegama - Aizkorri mountain marathon is held in Zegama, which has a medium distance course and also a special test, the vertical kilometer. All of these routes pass through the mountains near Zegama, with the hermitage of Sancti Spiritu, with its 180 meters of steep slope, being one of the mythical points of the marathon and the vertical kilometer.
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Atagoiti is located in Basque Country. From Ormaiztegi, the Atagoiti is 9.5 km long. Along this distance 322 altimeters are bridged. The average slope of the rise is, therefore, 3.4%.
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There are nearly 90 road cycling routes around Zerain, offering a wide range of options for different skill levels. This includes 22 easy, 38 moderate, and 28 difficult routes.
Zerain's road cycling routes are characterized by a mountainous landscape with winding roads and significant elevation changes. You'll encounter diverse gradients, from moderate climbs to challenging ascents, often through lush forests and verdant meadows, providing panoramic views of peaks like Aizkorri and Txindoki.
Yes, Zerain offers 22 easy road cycling routes that are suitable for less experienced cyclists or families looking for a more relaxed ride. These routes provide a gentler introduction to the region's beautiful scenery without overly demanding climbs.
Many routes offer panoramic views of the Goierri region's intense green pastures, mountains, and rural villages. You might also pass through the Arantzazu Sanctuary area or experience the dramatic landscapes of the Aizkorri-Aratz Natural Park. The Atagoiti – View of Aztiria from Mutiloa loop from Zegama, for instance, offers scenic views of the Aztiria area and surrounding valleys.
Absolutely. Zerain is known for its challenging terrain, with 28 difficult routes available. Routes like the Arantzazu Sanctuary and Udana Pass Loop feature substantial elevation gain through mountain passes, including the Udana Pass Ascent, making them ideal for experienced cyclists seeking a demanding ride.
The region's lush greenery suggests spring and summer offer pleasant conditions with vibrant landscapes. However, given the mountainous terrain, checking local weather forecasts for optimal riding temperatures and avoiding extreme heat or heavy rain is always advisable.
Yes, many routes around Zerain are designed as loops, allowing you to start and end in the same location. Examples include the Arantzazu Sanctuary and Udana Pass Loop and the Mandubia Summit – Ormaiztegi Viaduct loop from Zegama, which offer varied distances and difficulties.
The road cycling routes in Zerain are highly rated by the komoot community, with an average score of 4.2 stars from over 60 reviews. Cyclists often praise the varied terrain, challenging climbs, and the stunning natural beauty of the Goierri region.
Yes, the region is rich in cultural heritage. You might encounter sites like the Arantzazu Sanctuary or the historical San Adrián Tunnel. The Aizpea Mining Complex, just five minutes from Zerain, also offers thematic routes that can be explored, adding a cultural dimension to your ride.
Zerain is surrounded by several notable mountain passes. Cyclists can challenge themselves on ascents like the Udana Pass Ascent, Atagoiti, and Otzaurte, which are featured in various routes and offer rewarding climbs and descents.
One of the longer and more challenging routes is the Panoramic view of Eskoriatza – Udana Pass Ascent loop from Brinkola, which spans over 73 miles (118 km) and includes significant elevation gain, making it a demanding full-day ride.


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