4.8
(4)
91
riders
20
rides
Gravel biking around Sopuerta offers diverse landscapes and varied terrain, making it a compelling destination for outdoor enthusiasts. The region is characterized by a blend of accessible cycle paths, rural roads, and tracks, providing the mixed surfaces sought by gravel cyclists. Quiet valleys, green areas, and mountain peaks define the natural environment, complemented by historical features like faction towers and mining installations.
Last updated: October 25, 2026
5.0
(1)
9
riders
51.1km
03:46
830m
830m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
8
riders
68.2km
05:04
1,300m
1,300m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.

5.0
(1)
13
riders
45.1km
02:54
740m
740m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
2
riders
78.1km
06:50
2,280m
2,280m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
6
riders
24.1km
02:21
730m
730m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
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Castro Urdiales is a very cool fishing village! The beaches are quite accessible
0
0
Nice to drive and there are also some drinking water points
0
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
An alternative climb to the road with a couple of challenging sections. The condition varies depending on the logging; by 2025, it's suitable for a gravel bike. On the way down, be careful of some water passages.
0
0
Fast and very pleasant trail with very good sensations and fun
0
0
Sopuerta offers a robust network of over 20 gravel bike trails. These routes provide diverse landscapes and varied terrain, catering to different preferences for gravel cyclists.
The gravel biking routes around Sopuerta are predominantly challenging, with 16 routes rated as difficult and 5 as moderate. These trails often feature significant elevation changes and mixed surfaces, providing a rewarding experience for experienced riders.
While many routes are rated difficult, the region's accessible cycle paths, such as sections of the Greenway of the Montes del Hierro, offer easier-to-roll surfaces that can be suitable for families. These greenways provide a gentler introduction to gravel biking in Sopuerta.
You can expect a mix of accessible cycle paths, rural roads, and tracks. The terrain includes quiet valleys, green areas, and mountain peaks, offering varied surfaces and scenic environments ideal for gravel biking.
Beyond the scenic landscapes, you might encounter historical features like faction towers and mining installations. The area also boasts beautiful natural spots such as Pozo Hostión and the Lakes of the Old Iron Mines. The Itsaslur Coastal Greenway also offers impressive views of cliffs and the sea.
Yes, many routes around Sopuerta are designed as loops. For example, the challenging El Sobaco Tunnel – Lago de Galdames loop from Muskiz is a difficult 67.9 km route that takes you through diverse landscapes.
The routes in Sopuerta are highly rated by the komoot community, with an average score of 4.8 stars from over 11 reviews. Nearly 200 gravel bikers have explored Sopuerta's varied terrain, often praising the challenging climbs and diverse scenery.
Yes, the Alto de LA-1 (395 m) – Oriñón Bay loop from Castro-Urdiales is a difficult 50.7 km trail that leads through both mountainous and coastal areas, offering a varied and scenic ride.
Absolutely. Sopuerta is rich in history. You can explore routes that pass by medieval Roman bridges, the Church of San Martín, or even the mining installations, including two calcining kilns declared historical monuments. The Church of Saint Mary of the Assumption (Castro Urdiales) is another notable historical landmark nearby.
For a longer adventure, consider routes like the Piquillo Greenway – Guggenheim Museum Bilbao loop from Kobaron. This challenging 138.4 km route offers a significant journey, connecting you towards Bilbao and its iconic landmarks.
Popular starting points include areas like Putxeta, as seen in the route El Sobaco Tunnel – A & C Tunnel Entrance loop from Putxeta, or Castaño auzunea, which is the starting point for the A & C Tunnel Entrance – El Sobaco Tunnel loop from Castaño auzunea. These locations offer good access to the diverse trail network.


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