4.5
(20)
506
riders
50
rides
Mountain bike trails around Cillaperlata are set within the Montes Obarenes-San Zadornil Natural Park, characterized by the dramatic Ebro River gorges and diverse landscapes. The region features limestone ridges, extensive pine and oak forests, and varied topography with significant elevation changes. This area offers a blend of Atlantic and Mediterranean ecosystems, providing a rich natural environment for mountain biking.
Last updated: May 17, 2026
5
riders
40.7km
03:26
500m
500m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4
riders
45.5km
04:36
1,020m
1,020m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

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4.3
(3)
85
riders
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5.0
(1)
54
riders
39.1km
04:09
1,100m
1,090m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.3
(3)
30
riders
55.7km
04:30
290m
290m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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It's worth the joy to detour from the road to see the waterfall
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Built to span the Ebro River, this stone bridge is an impressive 143 meters long and features nine arches. The central section boasts a slender defensive tower, adorned with battlements and arrow slits, added in the 14th century. In medieval times, passage was controlled from this tower: anyone wishing to cross the bridge had to pay a toll of a few maravedís. The bridge offers one of the best views of the city of Frías.
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The Castle of the Dukes of Frías was declared a Site of Cultural Interest on April 22, 1949. It is situated on a rocky promontory overlooking the town and almost the entire Tobalina Valley. The oldest surviving remains date from the late 12th and early 13th centuries, but most of what remains is from the 15th century. Visitors can explore the large parade ground, part of the curtain wall, and the rampart walk, and climb the keep. Opening hours are daily from 10:30 a.m. to 2:00 p.m. and from 4:00 p.m. to 7:30 p.m., and the entrance fee is €2.
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Views of the Tobera waterfall
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Several waterfalls and areas to see in Tobera
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Beautiful medieval bridge over the Ebro River with views of Frias Castle
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One of the most beautiful bridges I know.
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There are over 50 mountain bike trails available around Cillaperlata, offering a wide range of options for different skill levels and preferences within the Montes Obarenes-San Zadornil Natural Park.
Yes, Cillaperlata offers mountain bike routes for various skill levels. While the majority are moderate (around 38 routes), there are also options for beginners (2 easy routes) and experienced riders (11 difficult routes) seeking a challenge.
The terrain around Cillaperlata is diverse, shaped by the Ebro River gorges, limestone ridges, and varied forests. You can expect a mix of surfaces, from the smooth sections of former railway lines like the Santander-Mediterranean Natural Trail to more rugged paths with significant ascents and descents through pine and oak forests. The region's unique geological formations of saline marl also add to the varied landscape.
Yes, there are a few easier routes suitable for families or those looking for a less strenuous ride. These trails often traverse forests and small rural villages, providing a pleasant experience without extreme technical demands. Look for routes categorized as 'easy' on komoot.
Generally, dogs are permitted on trails within the Montes Obarenes-San Zadornil Natural Park, but it's always recommended to keep them on a leash, especially in areas with wildlife or near livestock. Please respect local regulations and ensure your dog is well-behaved and doesn't disturb other users or the natural environment.
Absolutely! The region is rich in natural beauty. You can find routes that pass by stunning features like the Tobera Waterfalls and Medieval Bridge or offer views from the Tobera Waterfalls Viewpoint. The Ebro River gorges themselves are a dramatic natural landmark to explore.
The area offers a rich cultural heritage. You can bike past historical towns like Frías with its castle, or explore the Oña Historic Center. The Hermitage of Saint Mary of La Hoz, nestled in a rocky cut, is another unique point of interest along some routes.
The mountain bike trails around Cillaperlata are highly rated by the komoot community, with an average score of 4.5 stars from over 19 reviews. Mountain bikers often praise the diverse landscapes, the challenging yet rewarding ascents, and the scenic views of the Ebro River gorges and forests.
Mountain biking is generally permitted on designated trails within the Montes Obarenes-San Zadornil Natural Park. While specific permits are not typically required for general trail use, it's always advisable to stay on marked paths, respect private property, and adhere to any posted park regulations to protect the natural environment and ensure safety.
Parking is generally available in the nearby towns and villages that serve as starting points for many routes, such as Cillaperlata itself, Frías, or Oña. Look for designated parking areas or public spaces within these settlements. Always ensure you park responsibly and do not obstruct local access.
The spring and autumn months are generally ideal for mountain biking in Cillaperlata. The weather is milder, and the natural scenery is particularly vibrant. Summers can be hot, especially in the middle of the day, while winters may bring colder temperatures and potentially some snow at higher elevations, though many trails remain accessible.
Yes, advanced riders will find challenging options. For instance, the Sierra de Oña — circular por Cillaperalta desde Oña is a difficult 28.3-mile route with over 1000 meters of elevation gain, offering significant climbs and descents through the Sierra de Oña with expansive views. Another challenging option is the Oña Historic Town Center – MonasterioDeSanSalvador loop from Oña.
Yes, many of the mountain bike routes in the Cillaperlata area are designed as circular loops, allowing you to start and end in the same location. Examples include the Valle de Tobalina - circular from Frías - Las Merindades and the Oña Historic Town Center – Alcázar of the Constables loop from Oña.


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