4.3
(191)
4,989
riders
230
rides
Touring cycling in Aizkorri-Aratz offers diverse landscapes across the Basque Country, featuring mountain ranges, dense forests, and unique limestone karst formations. The park includes peaks exceeding 1,000 meters, such as Aitxuri and Aizkorri, providing challenging ascents and rewarding views. Extensive beech woods and sessile oak groves offer scenic routes, while higher elevations feature mountain meadows. The varied terrain supports a wide array of routes for different cycling preferences.
Last updated: August 27, 2026
25
riders
109km
07:14
1,300m
1,300m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
22
riders
29.4km
01:53
320m
320m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3.0
(1)
36
riders
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
15
riders
118km
07:46
1,490m
1,490m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1.0
(1)
49
riders
40.8km
02:45
640m
640m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Hiking in Aizkorri-Aratz
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Road Cycling Routes in Aizkorri-Aratz
Gravel biking in Aizkorri-Aratz
Very beautiful greenway, very pleasant
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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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cycling tradition in the heart of the Arlaban port
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A new visit to the Virgin of Dorleta, this time on gravel.
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The Town Hall building towers over Plaza de los Fueros. It is a Baroque building, built in 1758 by the Basque architect Martín de Carrera. The main façade features a portico with three large semicircular arches, above which opens a large lattice balcony with richly decorated, molded windows crowned by split pediments. The main façade is crowned by five pinnacles with an iron cross in the center.
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Virgin of Dorleta. Floral offering at the beginning of the season
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Newly paved road. It is very easy to climb up to the plateau.
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Aizkorri-Aratz offers a wide variety of touring cycling routes, with over 230 options available. These routes cater to different skill levels, including 27 easy, 65 moderate, and 138 difficult trails.
The best time for touring cycling in Aizkorri-Aratz is generally during the spring and autumn months. These seasons offer pleasant temperatures and lush scenery, with the beech woods and meadows at their most vibrant. Summer can also be good, especially in the cooler, forested areas, but be prepared for potentially warmer weather on exposed mountain sections.
You can expect a diverse range of terrain. The park features the highest mountain ranges in the Basque Country, offering challenging ascents and descents. There are also extensive native forests, such as beech and oak groves, providing shaded routes. The eastern part of the park is known for its unique limestone karst landscape with ridges and dolines, while the west transitions to more gently sloped mountains. Many routes will combine paved roads with unpaved segments, especially in higher elevations like the Urbia meadows.
Yes, Aizkorri-Aratz has 27 easy touring cycling routes, some of which are suitable for beginners and families. These routes often feature less elevation gain and may follow more gentle paths. For example, the Etxe-Zuri Bar – Ullíbarri-Gamboa Reservoir loop from Landa is an easy route that offers a pleasant ride around the reservoir.
Experienced touring cyclists will find plenty of challenging options, with 138 difficult routes in the park. These routes often involve significant elevation gain and cover longer distances. A notable challenging route is the Urola Greenway – Panoramic view of Deva loop from Brinkola, which covers over 100 km with substantial climbing.
Yes, many touring cycling routes in Aizkorri-Aratz are designed as loops, allowing you to start and finish at the same point. For instance, the Aramaio Valley – Arrasate / Mondragón loop from Aretxabaleta is a moderate circular trail that takes you through the scenic Aramaio Valley.
Aizkorri-Aratz is rich in natural and cultural landmarks. You can cycle past the historic San Adrián Tunnel, an ancient pass that was part of the Camino Real. The spectacular Arantzazu Sanctuary, perched over a deep gorge, is also a significant sight. For natural features, you might encounter the unique karst formations, dense beech forests, and the vast mountain meadows of Urbia, often dotted with shepherds' huts. Some routes also offer views of prominent peaks like Aizkorri Summit (1,523 m) or Aratz Summit (1,445 m).
The touring cycling routes in Aizkorri-Aratz are highly rated by the komoot community, with an average score of 4.3 stars from over 150 reviews. Cyclists often praise the diverse landscapes, from challenging mountain passes to serene forest trails, and the opportunity to combine physical exertion with cultural immersion. The stunning natural beauty, including the extensive beech woods and unique karst features, is frequently highlighted.
Yes, many villages and key access points around Aizkorri-Aratz Natural Park offer parking facilities. Towns like Oñati, Araia, and Aretxabaleta serve as popular starting points for routes and typically have designated parking areas. It's advisable to check specific route descriptions on komoot for detailed parking information at the trailhead.
Public transport options to Aizkorri-Aratz are available, though they might require some planning. Buses connect larger towns surrounding the park, such as Oñati, Araia, and Aretxabaleta, which can serve as starting points for your cycling adventures. However, direct access to all trailheads by public transport might be limited, so combining it with a short ride to the starting point is often necessary.
Yes, you'll find opportunities for refreshments, especially in the villages and towns located on the periphery of the park or along some of the more frequented routes. Places like Oñati, Araia, and Aretxabaleta offer cafes and restaurants. Within the park, you might also encounter traditional inns or shepherds' huts, such as the Urbia Inn, which provide a unique stopping point amidst the mountain meadows.
Aizkorri-Aratz Natural Park is home to the highest mountain range in the Basque Country. While touring cycling, you might encounter or see peaks exceeding 1,000 meters. Notable summits include Aizkorri (1,523 m) and Aratz (1,445 m). These provide challenging ascents and offer rewarding panoramic views for those who tackle them.


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