4.9
(16)
198
riders
6
rides
Gravel biking around Errenteria offers diverse terrain within the Oiartzun Valley, characterized by mountainous landscapes, river valleys, and coastal views. The region features granite peaks of Aiako Harria Natural Park, the serene Oiartzun River, and the challenging Jaizkibel Massif. Riders can expect a mix of unpaved sections, forest trails, and greenways, providing varied surfaces for gravel bikes. This area is suitable for those seeking routes that blend natural beauty with a true gravel experience.
Last updated: May 21, 2026
4.8
(4)
31
riders
59.3km
04:18
1,220m
1,220m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(2)
28
riders
29.9km
02:08
560m
560m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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10
riders
43.8km
03:18
1,050m
1,050m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
115km
08:26
2,370m
2,370m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Errenteria
Next to it is a whitewater kayak training area.
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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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Route demanded by percentages
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very beautiful view I love it
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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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magnificent city to visit by bike with cycle paths planned everywhere and well protected
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There are currently 6 dedicated no-traffic gravel bike routes listed around Errenteria. These routes are generally considered challenging, offering a rewarding experience for riders with good fitness.
Errenteria, nestled in the Oiartzun Valley, offers a unique blend of diverse landscapes perfect for gravel biking. You'll find routes that combine river valleys, mountainous terrain, and scenic coastal views, often utilizing old railway lines and greenways like the Arditurri Greenway. This provides a true 'gravel' experience with varied surfaces and minimal vehicle traffic, allowing you to immerse yourself in nature and history.
While the listed routes are generally rated as 'difficult' due to their length and elevation, the region's greenways, such as sections of the Arditurri Greenway along the Oiartzun River, often provide flatter, traffic-free paths suitable for families. These sections might not be full routes in themselves but offer pleasant, easy-going rides. For a full route, consider the difficulty ratings carefully.
The routes around Errenteria offer incredibly diverse scenery. You can expect panoramic views of the Bay of Biscay, lush oak and beech woods within the Aiako Harria Natural Park, and tranquil paths alongside the Oiartzun River. Historic sites like the Fort of San Marcos and ancient dolmens are also often found along or near these trails, adding a cultural dimension to your ride.
The komoot community highly rates the gravel biking experience around Errenteria, with an average score of 4.9 stars. Riders frequently praise the stunning natural beauty, the challenging yet rewarding terrain, and the peace of mind that comes with traffic-free routes. The blend of coastal views, mountain ascents, and historical points of interest makes for a memorable adventure.
Yes, several routes are designed as loops, allowing you to start and end at the same point. For example, the Bidassoa Railway Tunnels – Lantxurda Tunnel loop from Ventas de Irún offers a substantial circular ride. Another option is the View of the Bay of Biscay – Luzarbe Recreation Area loop from Lugaritz, which provides scenic coastal views.
Many routes pass by or near significant landmarks. You might encounter historical sites like the Fort of Nuestra Señora de Guadalupe or enjoy breathtaking vistas from viewpoints such as the Jaizkibel Summit. The Aitzondo Waterfall is another natural monument that can be explored in the wider region.
Spring and autumn are generally the most pleasant seasons for gravel biking in Errenteria. The weather is typically mild, and the landscapes are vibrant. While winter can offer unique, quieter rides, some higher elevation or exposed sections might be more challenging due to weather conditions. Summer can be warm, so early morning or late afternoon rides are often preferred.
Absolutely. All the listed no-traffic gravel routes around Errenteria are rated as 'difficult', indicating they are suitable for experienced riders seeking a challenge. Routes like the Witches' Bridge – Plazaola Greenway loop from Hernani, with its significant distance and elevation gain, will test your endurance and skill on varied gravel terrain.
Many of the routes start from towns or recreational areas that typically offer parking facilities. For instance, routes starting from Ventas de Irún, Lugaritz, Oiartzun, Pasaia, or Hernani will have parking options available in or near the starting points, allowing convenient access to the trailheads.
Yes, Errenteria's rich history is interwoven with its natural landscapes. Many gravel routes pass by or offer easy detours to historical points of interest. You can cycle past the Fandería Mill, a 15th-century site along the Oiartzun River, or visit the Fort of San Marcos, which offers incredible panoramic views. The region also features ancient dolmens and castle ruins, providing fascinating stops during your ride.


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