4.5
(66)
917
riders
102
rides
Mountain biking around Pas-Iguña offers diverse landscapes within the Valles Pasiegos region of Cantabria. The area features a blend of mountainous terrain, lush valleys, and dense forests, providing varied conditions for riders. Elevation gains are common, with trails traversing dirt tracks, forest paths, and former railway lines. The Pas River and its tributaries carve through the landscape, contributing to the region's natural features.
Last updated: October 24, 2026
5.0
(2)
14
riders
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5.0
(1)
1
riders
24.7km
02:54
950m
950m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

4.5
(2)
3
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
21.2km
02:26
830m
830m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
2
riders
22.3km
02:34
850m
850m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.3
(3)
63
riders
48.2km
04:30
1,310m
1,310m
Hard mountain bike ride. Very good fitness required.
4.4
(8)
45
riders
42.2km
02:21
190m
190m
Moderate mountain bike ride. Good fitness required.
5.0
(3)
45
riders
Moderate mountain bike ride. Good fitness required.
34
riders
48.9km
04:54
1,560m
1,560m
Hard mountain bike ride. Very good fitness required.
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The entire stretch of absolute beauty
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After a beautiful gravel climb, you reach this plateau with stunning views (including the Picos de Europa in the distance). The path then continues for a long time at altitude, with many cows and horses. Take a look: https://www.youtube.com/watch?v=OgEcgF17RDw
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Indeed, a beautiful spot with breathtaking views, both towards the Picos de Europa and other Cantabrian mountains. The (gravel) road there is also stunning; just take a look: https://www.youtube.com/watch?v=OgEcgF17RDw
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La Matanela Pass, 1,005 m. Border between Burgos and Cantabria, Meseta and Pas. From Burgos, it's known as La Magdalena. I copied the altimetry from altimetrias.net, which can be trusted.
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Attractive location, on a cycle path. There is a cafeteria open throughout the day in the gardens just opposite the Gran Hotel Balneario De Puente Viesgo.
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The Collada de Brenes is a mountain pass belonging to the Cantabrian mountain range and located in Cantabria. It links the municipality of Cieza to the north with that of Arenas de Iguña to the south.
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Crossroads below Pico Tordias and from where you reach the Ermita el Moral
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There are over 80 mountain bike trails around Pas-Iguña, offering a wide range of options for different skill levels. The komoot community has explored these routes over 700 times, highlighting the area's popularity for mountain biking.
The trails around Pas-Iguña offer a diverse range of difficulties. You'll find a good balance of moderate (40 trails) and difficult (39 trails) routes, alongside a few easier options (2 trails). This variety ensures there's something for every rider, from those seeking a relaxed ride to experienced mountain bikers looking for a challenge.
Yes, for an easier and family-friendly option, the Churrón de Borleña y túmulos de Quintana – circular por la Vía Verde del Pas trail is a great choice. It incorporates sections of the Pas Greenway, a 14 km, one-way, fully paved, traffic-free path that follows an old railway line, making it relatively flat and suitable for a relaxed ride through villages and alongside the Pas River. This route also passes the beautiful Churrón de Borleña Waterfall.
For advanced mountain bikers, Pas-Iguña offers several challenging routes with significant elevation gains. The Parque Natural Saja-Besaya – circular por El Moral y Venta de Tordías desde Arenas de Iguña is a difficult 45.1 km trail exploring the Saja-Besaya Natural Park and the El Moral plateau. Another demanding option is the Totem Poles of Subida Tejas – Quintana Burial Mounds loop from Lombera, which covers nearly 50 km with over 1300 meters of elevation gain.
Absolutely! The Churrón de Borleña y túmulos de Quintana – circular por la Vía Verde del Pas trail leads past the stunning Churrón de Borleña Waterfall. Additionally, the region is home to other natural highlights like the Castro Valnera Summit and the Pozos de Noja, which can be explored via various routes.
Yes, many mountain bike routes in Pas-Iguña are circular, allowing you to start and end at the same point. Examples include the Engaña Tunnel and Yera Station Loop, a moderate 21.2 km route, and the more challenging Pico de la Jarra and Hayal de Aloños Loop. These loops are ideal for exploring the diverse landscapes without needing a return trip.
Mountain biking in Pas-Iguña offers a rich tapestry of natural features. You'll traverse lush valleys, dense forests of oak and beech, and encounter significant elevation changes. Highlights include the high mountain El Moral Plateau with its hermitage, and the unique Fallen Oak of Brujilices (Oak 'Tumbao') in the Saja-Besaya Natural Park. The Pas River and its tributaries also add to the scenic beauty.
The mountain bike trails in Pas-Iguña are highly rated by the komoot community, with an average score of 4.5 stars from over 30 reviews. Riders often praise the diverse terrain, ranging from gentle greenways to challenging technical descents, and the stunning natural beauty of the Valles Pasiegos, including its lush valleys and dense forests.
Pas-Iguña, nestled in Cantabria, is known for its 'always green grasses,' suggesting a climate that supports year-round outdoor activity. However, for mountain biking, spring and autumn generally offer the most pleasant conditions with mild temperatures and vibrant landscapes. Summers can be warm, while winters might bring cooler temperatures and potentially some rain, but the region's beauty persists.
While many trails focus on natural landscapes, the region around Pas-Iguña is rich in cultural heritage. Routes like the Engaña Tunnel and Yera Station Loop feature historical railway infrastructure. You can also explore traditional Pasiego villages like Vega de Pas or San Pedro del Romeral, which preserve rural architecture and cultural identity, often accessible from various trailheads.
Yes, the Parque Natural Saja-Besaya – circular por El Moral y Venta de Tordías desde Arenas de Iguña is a challenging route that takes you directly through the Saja-Besaya Natural Park. This park is a significant natural resource in Cantabria, offering extensive forest areas and contributing to the region's biodiversity, making for a truly immersive natural experience.


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