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Routes
Gravel rides
Spain
Basque Country
Gipuzkoa
Alto Deba

Oñati

The best gravel rides around Oñati

4.8

(4)

101

riders

6

rides

Gravel biking around Oñati offers diverse terrain within a wide valley at the foot of the Aizkorri-Aratz Natural Park. The region features an abundance of hills, deep ravines, and limestone formations, providing varied gradients and technical sections. Riders can explore extensive green mountains, the distinct mass of Mount Aloña, and the Urkulu Reservoir. The area's karstic landscape contributes to its unique geological formations, with the Olaran River adding to the natural beauty.

Best gravel bike trails around Oñati

  • The most…

Last updated: May 5, 2026

4.7

(3)

73

riders

#1.

Ullibarri-Gamboa Reservoir – Ullíbarri-Gamboa Reservoir loop from Mendixur

49.7km

03:29

440m

440m

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

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Tips from the Community

Koldo
January 2, 2026, Ormaiztegi Viaduct

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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Road between Antzuola and Alto de Descarga. Good asphalt and hardly any traffic.

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Very fast

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was a piece of work

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Good area for walking or cycling

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When they release the water it is spectacular

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Very nice place, the reservoir is nearby and it's perfect to have a drink on the Etxezuri terrace.

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The best viewpoint in the Aramaio Valley

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Frequently Asked Questions

How many gravel bike trails are available around Oñati?

Oñati offers a diverse selection of nearly 20 gravel bike trails. These routes cater to various skill levels, with 3 moderate and 14 difficult options, ensuring there's a ride for every enthusiast.

Are there any family-friendly or easier gravel routes in the Oñati area?

While many routes in Oñati are rated as difficult, the region's greenways offer smoother, more accessible paths that can be suitable for families or those seeking an easier ride. For a moderate option, consider the Aitzorrotz Hermitage – Urkulu Dam loop from Izurieta, which covers about 31 km with manageable elevation.

What kind of terrain can I expect on Oñati's gravel bike trails?

Oñati's gravel trails are characterized by an 'abundance of hills,' deep ravines, and limestone formations, especially within the Aizkorri-Aratz Natural Park. You'll encounter varied gradients, from challenging climbs to scenic trails through extensive green mountains and around the Urkulu Reservoir. Greenways also provide smoother sections.

Are there any circular gravel bike routes around Oñati?

Yes, many of Oñati's gravel routes are designed as loops. For instance, the Vasco-Navarro Greenway – Garaio Footbridge loop from Arlaban is a popular 61 km circular trail. Another extensive loop is the Landa Recreation Area – Vasco-Navarro Greenway loop from Goroeta, covering nearly 93 km.

What interesting natural landmarks or attractions can I see along the gravel routes?

The region is rich in natural beauty. You can explore the dramatic karstic systems, including the Eye of Aitzulo, or pass by the San Adrián Tunnel. The Urkulu Reservoir is also a prominent feature, offering scenic views. Many routes traverse the Aizkorri-Aratz Natural Park, known for its high summits and diverse landscapes.

Are there any historical sites or cultural points of interest accessible by gravel bike?

Yes, Oñati's routes can lead you through areas with historical significance. The Mirandaola Forge and Park – Udana Pass Ascent loop from Legazpi, for example, takes you through historical sites. The Sanctuary of Arantzazu, a significant spiritual center, is also a starting point for mountain paths that can be incorporated into rides.

What do other gravel bikers say about the trails in Oñati?

The gravel biking experience in Oñati is highly rated by the komoot community, with an average score of 4.4 stars. Riders often praise the varied terrain, from challenging climbs in the natural park to the more accessible greenways, and the immersive natural beauty of the green mountains and ravines.

Is it possible to find routes with significant elevation gain for a challenging ride?

Absolutely. Oñati is known for its 'abundance of hills' and mountainous terrain within the Aizkorri-Aratz Natural Park. Routes like the Landa Recreation Area – Vasco-Navarro Greenway loop from Goroeta feature over 1200 meters of elevation gain, providing a demanding experience for seasoned gravel bikers.

Are there options for parking near the gravel bike trails in Oñati?

While specific parking areas for each trail are not detailed, Oñati is a well-established town. Many routes start from or pass through towns like Arlaban, Goroeta, or Legazpi, where public parking facilities are generally available. It's advisable to check local parking options in your chosen starting point.

What is the best season for gravel biking in Oñati?

The region's lush green mountains suggest pleasant conditions during spring and autumn, when temperatures are milder and the scenery is vibrant. Summer can also be good, but be prepared for warmer weather, especially on exposed sections. Winter might bring colder temperatures and potentially wet conditions, particularly at higher elevations in the Aizkorri-Aratz Natural Park.

Can I find places to stop for refreshments or food along the routes?

Many routes connect Oñati to other historical towns like Arrasate-Mondragón and Bergara via greenways, and pass through smaller villages. These towns and villages typically offer cafes, restaurants, and shops where you can refuel. For example, the Mirandaola Forge and Park – Udana Pass Ascent loop from Legazpi passes through areas where such stops are likely available.

Are there any huts or refuges along the trails for longer rides?

Yes, especially within the Aizkorri-Aratz Natural Park, there are several huts and refuges. Notable options include the Urbia Inn and the Aizkorri Refuge and Hermitage. These can be useful for longer excursions or as rest points.

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