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Routes
Gravel rides
Spain
Basque Country
Gipuzkoa
Goierri

Itsasondo

The best gravel rides around Itsasondo

5.0

(1)

33

riders

2

rides

Gravel biking around Itsasondo offers diverse terrain within the Goierri region of Gipuzkoa. The area is characterized by the presence of Murumendi Mountain, providing varied elevations, and the River Oria, which suggests flatter riverside paths. Itsasondo's location within the wider natural beauty of Gipuzkoa means access to a range of landscapes, including potential greenways. Traces of the town's historical slate industry may also be encountered along some routes.

Best gravel bike trails around Itsasondo

  • The most popular gravel bike trail…

Last updated: July 2, 2026

10

riders

#1.

Santa Cruz Tunnel – Witches' Bridge loop from Tolosa

110km

07:04

1,760m

1,760m

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

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Hard

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, Vía Verde de Mutiloa a Ormaiztegi

This area was a mining complex, the Mutiloa mining district, from the late 19th century. In 1911, 162 miners worked there, and in 1912, 34,500 tons of iron ore were stored and washed. After being transported by rail to Ormaiztegi, it was shipped to European steelworks. (https://www.mutiloakomeatzaritza.eus/es/la-via-verde/)

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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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inakio
September 8, 2025, Plazaola Greenway

Great route for beginners as has mainly constant and light slopes. Only half a dozen uphills the first 30 km from Pamplona.

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One of the ideal areas to start the Plazaola greenway

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That bridge is called "INTUIA-ko zubia" the INTUIA farmhouse is next to it. The misnamed "witches' bridge" is called UNANIBI-ko zubia, right in the Otita park (beginning of the Leitzaran valley). Don't forget to bring lights to cross the numerous tunnels in this valley!! Not to see but to be seen.

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A must when you pass through this area. Stopping and having a coffee is almost mandatory. 😉

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One of the best greenways we know.

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This beautiful city located in the valley of the Oria River is surrounded by small mountains and green meadows. Thus, it offers you the possibility of escaping from the noise of the city in a few minutes. Furthermore, in its historic center is the church of San Martín de Tours, which is undoubtedly worth a visit.

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Frequently Asked Questions

How many gravel bike trails are available around Itsasondo?

Itsasondo offers a selection of gravel biking routes, with at least four distinct trails documented on komoot. These routes explore the diverse terrain of the Goierri region, providing options for challenging rides.

What kind of terrain can I expect on gravel bike routes near Itsasondo?

The terrain around Itsasondo is quite varied, influenced by Murumendi Mountain and the River Oria. You'll encounter significant elevation changes and mountain slopes, alongside flatter riverside paths. The broader Goierri region offers diverse landscapes, including traces of the historical slate industry.

Are there any family-friendly gravel biking options in Itsasondo?

While Itsasondo's documented gravel routes tend to be challenging with significant elevation gain, the region's natural features, like the River Oria, suggest potential for easier, flatter sections. For families, it's advisable to look for routes specifically marked as easy or explore greenways in the wider Basque Country that follow old train routes, which are often suitable for all ages.

Can I find circular gravel bike routes starting near Itsasondo?

Yes, many of the gravel biking routes in the area are designed as loops. For example, the Santa Cruz Tunnel – Witches' Bridge loop from Tolosa and the Ormaiztegi Viaduct – View of Aztiria from Mutiloa loop from Beasain are popular circular options that allow you to start and finish in the same general area.

What are some notable natural features or landmarks to see along the gravel routes?

The region is rich in natural beauty. You might encounter the imposing Murumendi Mountain, ride alongside the River Oria, or discover traces of the historical slate industry. For specific points of interest, consider exploring highlights like the Amezketa Stream Waterfall or the summit of Txindoki (1,346 m), which offer stunning views.

Are there any routes suitable for advanced gravel bikers looking for a challenge?

Absolutely. Itsasondo is well-suited for experienced gravel bikers. Routes like the Santa Cruz Tunnel – Witches' Bridge loop from Tolosa, at 68.2 miles with significant elevation gain, are designed for those seeking a demanding ride. All currently listed routes are rated as 'difficult'.

What is the best time of year for gravel biking in Itsasondo?

Gipuzkoa, where Itsasondo is located, offers a pleasant climate for outdoor activities. While specific weather patterns vary, generally spring and autumn provide mild temperatures and beautiful scenery, making them ideal for gravel biking. Summer can also be good, but be prepared for warmer conditions, especially on exposed climbs.

Are there any amenities like cafes or restaurants along the gravel bike trails?

Itsasondo and the surrounding towns within the Goierri region offer various amenities. While specific cafes directly on remote trail sections might be limited, you'll find options for refreshments and meals in the starting and ending points of many routes, such as Tolosa, Zumarraga, or Beasain. It's always a good idea to plan your stops in advance.

What do other gravel bikers say about the routes in Itsasondo?

The gravel biking routes around Itsasondo are highly regarded by the komoot community, holding an average rating of 5.0 stars. Riders often praise the varied terrain, the challenging climbs, and the scenic beauty of the Goierri region, making it a rewarding destination for gravel enthusiasts.

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

Yes, the region has a rich history. Itsasondo itself has a historical connection to the slate industry, and you might find traces of former quarries. Nearby, you can visit the Igartza Monumental Complex or the charming Ermita de la Antigua, which can be incorporated into your rides or visited as side trips.

Is there public transport access to the gravel biking areas around Itsasondo?

Itsasondo is located within the Goierri region of Gipuzkoa, which generally has public transport connections. While direct access to every trailhead might vary, larger towns like Tolosa, Zumarraga, and Beasain, which serve as starting points for some routes, are typically well-connected by regional transport. Check local bus or train schedules for specific routes and bike carriage policies.

Are there any routes that combine riverside sections with climbs?

Yes, the diverse landscape around Itsasondo often blends different types of terrain. The Trekutz Picnic Area – Aizpurutxo Riverside Pathway loop from Zumarraga is a great example, offering a mix of scenic riverside riding and more challenging ascents, providing a varied and engaging experience.

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