4.3
(21)
280
riders
28
rides
Gravel biking around Santurtzi offers routes through a landscape shaped by its coastal position and industrial heritage, featuring a mix of green hills, river valleys, and former railway lines. The terrain includes both paved and unpaved surfaces, with elevations ranging from sea level to inland hills. This region provides varied conditions for gravel cyclists, from smoother paths to more challenging climbs.
Last updated: May 28, 2026
4.3
(3)
56
riders
72.6km
04:32
1,150m
1,150m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(14)
91
riders
48.4km
02:54
740m
740m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(4)
33
riders
38.1km
02:23
500m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
18
riders
43.0km
03:27
1,010m
1,010m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(4)
17
riders
31.3km
02:02
560m
560m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Bridge on the cycle superhighway over the motorway junction, for cyclists and pedestrians
1
0
Already pretty much at the end/beginning of the railway line, here it is even asphalted, before/later not anymore, but always easy to ride.
1
0
Short and easy quiet route
0
0
no kidding. 32 miles of this round trip of 40 miles was on gorgeous bike trails
0
0
simple and family route.
0
1
one of the oldest and most beautiful bike lanes in the Basque Country
0
0
There is a fantastic network of cycle paths in and around Bilbao. The cycle superhighways are particularly easy to ride on. It's enough to make you jealous.
2
0
Santurtzi offers a diverse network of over 30 gravel bike trails. These routes cater to various preferences, with a strong focus on more challenging terrain, providing ample opportunities for exploration.
The gravel biking terrain around Santurtzi is shaped by its coastal position and industrial heritage. You'll encounter a mix of green hills, river valleys, and former railway lines. Routes feature both paved and unpaved surfaces, with elevations ranging from sea level to inland hills, offering varied conditions from smoother paths to challenging climbs.
While Santurtzi's gravel routes are predominantly rated as difficult, there are a few moderate options available. Currently, there are no trails specifically categorized as easy. Riders new to gravel biking might find the existing routes challenging due to significant elevation changes and varied surfaces.
Yes, Santurtzi is an excellent destination for experienced gravel bikers. The majority of the routes, specifically 28 out of 33, are rated as difficult. These trails often feature substantial elevation gains and technical sections, such as the Pozo Hostión – Path to Regato loop from Sagrada Familia, which covers over 78 km with significant climbing.
Absolutely. Many gravel routes around Santurtzi are designed for longer rides. For example, the El Sobaco Tunnel – Lago de Galdames loop from Muskiz is a difficult 67.9 km path, while the A & C Tunnel Entrance – Tunel de la Galerna loop from Peñota extends to 70 km, offering extensive gravel sections and scenic landscapes.
Yes, many of the gravel bike routes in Santurtzi are designed as circular loops, allowing you to start and finish at the same point. This is convenient for planning your ride, such as the El Sobaco Tunnel – A & C Tunnel Entrance loop from Putxeta, which is a popular 49.2 km circular trail.
Many routes offer opportunities to see notable landmarks. You might pass by the iconic Vizcaya Bridge, a UNESCO World Heritage site, or explore sections of the Greenway of the Montes del Hierro. Some trails also offer views of the coast or lead towards summits like Karabezu Summit.
Santurtzi is well-connected by public transport, particularly by train (Cercanías Renfe) and bus services, which can facilitate access to various starting points for gravel bike trails. Many routes begin near towns or villages that are reachable by these services, making it easier to plan your journey without a car.
Parking is generally available in and around the towns and villages that serve as common starting points for gravel routes, such as Santurtzi itself, Muskiz, or Peñota. Look for public parking areas, especially near train stations or town centers, which often provide convenient access to the trails.
The komoot community highly rates the gravel biking experience in Santurtzi, with an average score of 4.7 stars from over 10 reviews. Riders often praise the varied terrain, which includes coastal paths, green hills, and unique sections through former railway tunnels, offering a diverse and engaging ride.
Given Santurtzi's coastal climate, spring and autumn generally offer the most pleasant conditions for gravel biking, with milder temperatures and less extreme weather. Summer can be warm, while winter might bring more rain, though the region's trails are often rideable year-round with appropriate gear.
Yes, the routes often provide stunning views, especially those that traverse the green hills or follow coastal paths. You can expect panoramic vistas of the Bay of Biscay and the surrounding natural landscapes. Trails leading to summits like Saierri Summit or Ganeran Summit will offer particularly rewarding views.


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