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Spain
Basque Country
Gipuzkoa
Tolosa

Zizurkil

The best gravel rides around Zizurkil

4.8

(14)

192

riders

11

rides

Gravel biking around Zizurkil features a landscape characterized by river valleys, greenways, and significant elevation changes. The region offers a mix of natural paths and historical routes, including sections that pass through tunnels and alongside rivers. Zizurkil's mountainous interior and verdant valleys provide diverse terrain for mixed-surface routes. Terrain often involves sustained climbs and descents, providing a challenging experience for gravel cyclists.

Best gravel bike trails around Zizurkil

  • The most popular gravel bike trail is Plazaola Greenway – Witches' Bridge…

Last updated: July 3, 2026

4.7

(3)

55

riders

#1.

Plazaola Greenway – Witches' Bridge loop from Andoain-Centro

50.2km

03:01

640m

640m

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. You may need to push your bike for some segments of this route.

Hard
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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

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

Hard
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Tips from the Community

Tina & Günni
May 31, 2026, Vista de San Sebastián

Up in the mountains, you can already guess what's coming.

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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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very beautiful view I love it

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One of the ideal areas to start the Plazaola greenway

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great views along the route

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Although you have to make a slight detour, it is worth visiting this bridge and taking a photo on it if you want.

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climb with 3 different slopes from Leitza about 6km from Goizueta about 15km from Santesteban about 23km

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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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Frequently Asked Questions

What kind of terrain can I expect on gravel bike trails around Zizurkil?

Gravel biking around Zizurkil is characterized by diverse terrain, including river valleys, historic greenways, and significant elevation changes. You'll encounter natural paths, sections through tunnels, and routes alongside rivers. Expect sustained climbs and descents, providing a challenging experience.

Are there any easy or beginner-friendly gravel bike routes in Zizurkil?

The gravel biking network around Zizurkil is primarily designed for experienced riders seeking demanding routes. Most of the 19 available tours are rated as difficult, with only one route considered moderate and none classified as easy. This region is best suited for those comfortable with challenging climbs and varied terrain.

What are some of the longer gravel bike routes available in the Zizurkil area?

For those looking for longer rides, the Santa Cruz Tunnel – Witches' Bridge loop from Tolosa is a substantial option, covering nearly 110 km with significant elevation gain. Another challenging long-distance route is the Plazaola Greenway – Witches' Bridge loop from Errekalde, which is 86.6 km long.

Are there any circular gravel bike routes around Zizurkil?

Yes, many of the gravel bike routes in Zizurkil are designed as loops. For instance, the Oria River – Andoain loop from Asteasu offers a 45.3 km circular ride, allowing you to start and finish at the same point.

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

The gravel biking routes in Zizurkil are highly rated by the komoot community, with an average score of 4.8 stars from around 30 reviews. Riders often praise the challenging nature of the trails, the scenic river valleys, and the unique experience of riding through historic greenways and tunnels.

What are some scenic highlights or viewpoints along the gravel bike trails?

The routes often follow historic greenways and river valleys, offering picturesque views. While specific viewpoints are not detailed for every route, the region's characteristic river valleys and elevated sections naturally provide scenic vistas. The Witches' Bridge is a notable landmark featured on several routes.

Are there any interesting landmarks or attractions near the gravel bike routes in Zizurkil?

Yes, the area around Zizurkil offers several interesting landmarks. You might encounter the historic Witches' Bridge on some routes. For those interested in natural beauty, nearby mountain peaks like Uzturre Summit (733 m) and Adarra Summit (849 m) offer impressive views, though they may require a separate hike.

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

The Basque Country, including Zizurkil, generally experiences mild weather, making gravel biking enjoyable for much of the year. Spring and autumn offer pleasant temperatures and lush landscapes. Summers can be warm but are often suitable, while winters are typically mild but can bring rain. Always check local weather forecasts before heading out.

Are there any gravel bike routes that pass through tunnels?

Yes, several routes in the Zizurkil area incorporate tunnels, adding a unique element to the ride. The Santa Cruz Tunnel – Witches' Bridge loop from Andoain-Centro is a prime example, leading through diverse landscapes including tunnel sections.

How many gravel bike trails are available in the Zizurkil region?

There are 19 gravel bike trails documented in the Zizurkil region on komoot. The vast majority of these, 18 routes, are rated as difficult, catering to experienced gravel cyclists.

What are the typical elevation gains on gravel bike routes in Zizurkil?

Given the region's challenging terrain, you can expect significant elevation gains on most routes. For example, the Santa Cruz Tunnel – Witches' Bridge loop from Andoain-Centro involves over 1600 meters of ascent, while the Oria River – Andoain loop from Asteasu has an elevation gain of over 860 meters.

Is parking available near the starting points of these gravel bike trails?

While specific parking information for each trailhead isn't detailed, routes often start from towns like Errekalde, Andoain-Centro, Asteasu, or Tolosa. These towns typically offer public parking options. It's advisable to check local parking availability in your chosen starting town before your ride.

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