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Gravel rides
Spain
Basque Country

Gaztelu

The best gravel rides around Gaztelu

4.7

(7)

91

riders

7

rides

Gravel biking around Gaztelu offers routes through the verdant mountains and expansive meadows characteristic of rural Gipuzkoa. The region features varied terrain, including both challenging climbs and rolling hills, ensuring diverse experiences for cyclists. Proximity to the Plazaola Greenway, a repurposed railway line, provides traffic-free gravel travel through valleys, forests, and tunnels. The area also borders Aralar Natural Park, offering additional trails and panoramic views.

Best gravel bike trails around Gaztelu

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

Last updated: July 3, 2026

4.7

(3)

51

riders

#1.

Witches' Bridge – Plazaola Greenway loop from Leitzako Udala

45.4km

02:42

570m

570m

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

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Hard

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

Moderate
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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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Popular around Gaztelu

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Tips from the Community

Ignacio
May 24, 2026, Uitzi Tunnel

As of May 24, 2026, the tunnel is closed. The alternative route is by road to the village of Leitza. From there, you take the greenway again.

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2

0

A bar with a view and good food, a good place to stop. Closed Mondays.

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0

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.

0

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One of the ideal areas to start the Plazaola greenway

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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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The 2700m tunnel is impressive and seems to never end. Advice: Bring clothes at least when passing through this tunnel as it is cool. Otherwise there is automatic lighting.

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2700 m

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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

How many gravel bike trails are there around Gaztelu?

There are 8 gravel bike trails available around Gaztelu, offering a variety of experiences through the region's green mountains and meadows.

What kind of terrain can I expect on gravel bike trails near Gaztelu?

You can expect varied terrain, from challenging climbs through verdant mountains to more leisurely rides across rolling meadows. Many routes utilize the historic Plazaola Greenway, which features a mix of gravel roads, dirt tracks, and some paved sections, along with numerous tunnels and viaducts. The Leitzaran Valley, in particular, offers beautiful beech and oak forests.

Are there any family-friendly gravel biking options in the Gaztelu area?

While many routes in the immediate vicinity of Gaztelu are rated as difficult, the Plazaola Greenway itself offers sections that are generally more accessible and traffic-free, making it a good option for families. Look for routes that specifically mention the Greenway for a potentially gentler experience.

Can I find routes suitable for beginners or those looking for an easier ride?

Yes, there is one moderate route available: the Plazaola Greenway – Santa Cruz Tunnel loop from Leitza. This 19.3-mile (31.1 km) path offers a mix of gravel roads and tunnels through the scenic Leitzaran Valley, providing a less strenuous option compared to the more difficult trails.

What are some challenging gravel bike routes for experienced riders?

For experienced riders seeking a challenge, the area offers several difficult routes. One such option is the Witches' Bridge – Plazaola Greenway loop from Leitza, a 28.1-mile (45.3 km) trail with significant elevation changes. Another demanding route is the Cantina del Plazaola – Plazaola Greenway loop from Leitza, which covers 38.4 miles (61.7 km) through varied landscapes.

Are there any notable natural attractions or landmarks along the gravel bike routes?

Yes, the region is rich in natural beauty. You can encounter highlights such as the Leitzaran River Valley, known for its lush forests. For those interested in waterfalls, the Amezketa Stream Waterfall is a notable natural monument. Additionally, several routes offer views of prominent peaks like Uzturre Summit (733 m) and Adarra Summit (849 m).

Is the Plazaola Greenway a good option for gravel biking?

Absolutely. The Plazaola Greenway is a significant draw for gravel bikers, offering traffic-free travel along a repurposed old railway line. It winds through valleys, lush forests, and features numerous tunnels and viaducts, providing a unique and scenic gravel biking experience. Its terrain is ideal for gravel bikes, with a mix of gravel, dirt, and some paved sections.

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

The mild, rainy climate of the Basque Country ensures a consistently green landscape, making it pleasant for cycling for much of the year. Spring and autumn generally offer the most comfortable temperatures and vibrant scenery. While the region is green year-round, be prepared for potential rain, especially outside of the drier summer months.

Are there circular gravel bike routes available?

Yes, many of the gravel bike routes around Gaztelu are designed as loops. Examples include the Witches' Bridge – Plazaola Greenway loop from Leitza and the Plazaola Greenway – Santa Cruz Tunnel loop from Leitza, allowing you to start and end in the same location.

What do other cyclists say about gravel biking in Gaztelu?

The gravel biking routes around Gaztelu are highly rated by the komoot community, with an average score of 4.8 stars from several reviews. Nearly 100 gravel bikers have explored the varied terrain, often praising the scenic green mountains, expansive meadows, and the unique experience of the historic Plazaola Greenway.

Where can I find parking when gravel biking near Gaztelu?

While Gaztelu is a small village, starting points for many routes, such as Leitza or Tolosa, typically offer parking facilities. It's advisable to check specific route descriptions for detailed parking information at the trailhead.

Are dogs allowed on the gravel bike trails around Gaztelu?

Many outdoor trails in the Gipuzkoa region are dog-friendly, especially those in natural park areas or greenways, provided dogs are kept under control. However, specific regulations can vary, so it's always best to check local signage or park rules for the particular section of the trail you plan to ride.

Are there places to stop for refreshments or accommodation near the trails?

Gaztelu itself is a tranquil village, but nearby towns like Tolosa offer a wider range of cafes, pubs, and accommodation options. Along the Plazaola Greenway, you might find small establishments or 'cantinas' that cater to cyclists, such as the one mentioned in the Cantina del Plazaola – Plazaola Greenway loop from Leitza route.

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