4.9
(15)
214
riders
10
rides
Gravel biking around Ultzama offers routes through varied terrain, characterized by dense forests, historic greenways, and significant elevation changes. The region features a network of trails that often incorporate elements like viaducts and tunnels, providing a mix of natural and man-made features. These routes typically involve sustained climbs and descents, making them suitable for experienced gravel bikers. The landscape transitions from open areas to shaded woodland paths, providing diverse riding conditions.
Last updated: July 8, 2026
4.7
(7)
115
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
30
riders
49.3km
02:57
600m
600m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.7
(3)
31
riders
88.2km
05:33
1,090m
1,090m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
17
riders
67.4km
04:52
1,180m
1,180m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
riders
95.9km
06:21
1,740m
1,740m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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.
2
0
A bar with a view and good food, a good place to stop. Closed Mondays.
0
0
Part of the tour is actually a difficult MTB trail
0
0
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
0
0
A comfortable route through Lapurdi, a circular route departing from Irun, traveling inland through Urruña and Ascain, returning to the coast via Donibane-Lohitzun and following the coast through Hendaye to the starting point.
1
1
Except for the short 16% ramp, getting there was super smooth and easy.
0
0
It is important to bring lights for the tunnels and some clothing for the long tunnels, including in summer.
0
0
Ultzama offers 11 challenging gravel bike trails, all highly rated by the komoot community. These routes explore the region's dense forests, historic greenways, and varied terrain.
The gravel bike trails in Ultzama are generally considered difficult. They feature significant elevation changes, sustained climbs, and descents, making them best suited for experienced riders. For example, the Plazaola Greenway – Gulina Viaduct loop from Urritza covers 59.5 km with over 648 meters of ascent.
Given the challenging nature and significant elevation changes of the routes in Ultzama, most trails are not typically recommended for families or beginners. The region primarily caters to experienced gravel bikers seeking demanding rides.
You can expect a mix of dense forests, historic greenways, and varied terrain. Many routes incorporate unique features like viaducts and tunnels, such as the Santa Cruz Tunnel – Plazaola Greenway loop from Imotz, which includes passage through the Santa Cruz Tunnel.
Yes, many of the gravel bike trails in Ultzama are circular loops. For instance, the Plazaola Greenway – Santa Cruz Tunnel loop from Urritza is a challenging 88.2 km circular route that takes about 7 hours 27 minutes to complete.
Many routes utilize the historic Plazaola Greenway. You might also encounter features like the Gulina Viaduct or the Santa Cruz Tunnel. Other nearby attractions include the Artesiaga Pass and the Aixita Castle Ruins.
The gravel bike trails in Ultzama are highly regarded by the komoot community, holding an average rating of 4.8 stars from over 18 reviews. Riders often praise the unique blend of natural landscapes and historic infrastructure, such as the greenways and tunnels.
The duration varies depending on the route and your pace, but most difficult routes in Ultzama are substantial. For example, the Orgi Forest – Camping Izarpe loop from Juslapeña / Txulapain is 67.1 km long and typically takes around 5 hours 48 minutes.
While specific viewpoints aren't detailed for every route, the varied terrain and significant elevation changes mean many trails offer expansive views of the surrounding landscape. The region's transition from open areas to shaded woodland paths provides diverse scenic experiences.
Yes, the Plazaola Greenway – Gulina Viaduct loop from Imotz is a great option. This 62.8 km route combines sections of the historic greenway with views of the Gulina Viaduct, offering a comprehensive experience of the region's highlights.
While specific seasonal data isn't provided, the region's dense forests and varied terrain suggest that spring and autumn would offer pleasant temperatures and vibrant scenery. Winter conditions might introduce challenges like mud or colder temperatures, especially at higher elevations.


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