5.0
(1)
35
riders
8
rides
Gravel biking around National Park Saja-Besaya offers challenging routes through a landscape characterized by dense forests, mountainous terrain, and river valleys in Cantabria, Spain. The region features significant elevation changes, with many trails navigating through rugged, natural environments. These routes often follow unpaved forest roads and tracks, providing a demanding experience for gravel bikers.
Last updated: July 2, 2026
13
riders
85.6km
08:34
2,040m
2,040m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
72.5km
06:20
2,100m
2,100m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
45.6km
03:27
840m
840m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
37.1km
02:41
660m
660m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
42.5km
03:12
690m
690m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
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Popular around National Park Saja-Besaya
The Collada de Carmona is a mountain pass in the Cantabrian mountain range located in western Cantabria.[1] It rises to 601 m above sea level and links the towns of Valle to the east and Carmona to the west, both belonging to the municipality of Cabuérniga.
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The Monte Aa Pass is a very beautiful climb with spectacular landscapes. The pass is located on the mountain that separates Carmona from Ruente. Along the route we will find different trees catalogued within the Inventory of Singular Trees of Cantabria. These are spectacular specimens of oak and beech. The Monte Aa forest is made up of a mature oak forest dominated by oaks. To a lesser extent, there are beeches, sessile oaks and oaks. The abundance of holly trees is remarkable. As for the fauna that inhabits it, birds such as the goshawk, the sparrowhawk, the black kite, the common buzzard, the common kestrel, the woodpecker and other forest birds stand out. Mammals such as the roe deer, the deer or the badger and carnivores such as the marten or the polecat.
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The climb to Negreo along the southern slopes of Renedo and Moscadoriu, due to its length, is not one of the longest, it is only 6 kilometres but in two sections, each one stickier than the other, the first 3 kilometres with very hard concrete ramps with a gradient of up to 18-20% that make the bike rise more than expected and the last three kilometres with a lesser gradient but on more technical and broken terrain.
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Spectacular beech forest in the Saja park that is part of the 10,000 of Soplao
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Pure green to enjoy
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On a hill, and guarding the road that linked the coast with Castilla through the Saja Valley, is the Castillo de San Vicente, in Argüeso, within the municipality of the Brotherhood of Campoo de Suso, in the South from Cantabria (Spain). Built during the 13th, 14th and 15th centuries, it was the emblem and fortress of the dominion of the House of Mendoza in the highlands of Campoo.
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Beautiful 12th century church and an example of Romanesque-style religious architecture in southern Cantabria. The church is listed as an Asset of Cultural Interest. Inside it has a small interactive museum.
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Located between high mountains far from the sea, the fascinating thing about this city is that it dates back to the Middle Ages, with an old town with interesting monuments to visit. The structure that stands out the most is the church of San Sebastián in the old center of the city. Furthermore, in the Town Hall Square you can see a set of ashlar buildings, built in the 16th and 17th centuries. Don't forget to try the city's most typical sweet, calf, which is a puff pastry with caramelized sugar.
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The gravel bike trails in National Park Saja-Besaya are primarily designed for experienced riders. All routes listed are rated as difficult, featuring significant elevation changes, sustained climbs, and descents through rugged, natural environments. You should expect demanding terrain on unpaved forest roads and tracks.
Gravel bike routes in National Park Saja-Besaya vary in length, generally ranging from around 45 km to over 85 km. For example, the Historic Center of Reinosa – Cruz de Fuentes loop from Reinosa is about 45.6 km and takes around 3 hours 26 minutes, while the Gravel loop in Saja-Besaya natural park covers 85.6 km and can take over 8 hours to complete.
Given the challenging nature of the terrain and the significant elevation gains, the gravel bike routes in National Park Saja-Besaya are generally not suitable for beginners or young families. All featured routes are classified as difficult, requiring a good level of fitness and gravel biking experience.
Many routes start from accessible points near towns or specific landmarks. For instance, the Ucieda Parking with Fountain – Collada de Carmona loop from Ruente begins near Ucieda, suggesting parking availability there. Other routes start from locations like Reinosa, Virgen de la Peña, or Estación de Las Caldas de Besaya, which typically offer starting points for exploration.
You will experience a diverse landscape characterized by dense forests, challenging mountainous terrain, and remote river valleys. The region is known for its rugged, natural environments, offering panoramic views from higher elevations and serene passages through beech forests. Highlights include areas like the Beautiful section through the beech forest and the Pool area in the Argonza River.
Yes, several routes pass by interesting natural and historical points. You might encounter the Cruz de Fuentes mountain pass, or natural monuments like the Fallen Oak of Brujilices. The El Moral Plateau offers expansive views.
Given the mountainous terrain and potential for challenging weather, the best seasons for gravel biking in National Park Saja-Besaya are typically spring, summer, and early autumn. During these months, you can expect more stable weather conditions and clearer trails. Winter can bring snow and ice, making many routes impassable or significantly more difficult.
Yes, many of the gravel bike routes in National Park Saja-Besaya are designed as loops, allowing you to start and finish at the same point. Examples include the Ermita de San Antonio – San Ciprián Climb loop from Virgen de la Peña and the Alto de San Cipriano – Pico del Palo de Ibio loop from Estación de Las Caldas de Besaya.
The komoot community highly rates the gravel biking experience in this region, with an average score of 5.0 stars. Reviewers often praise the challenging nature of the routes, the stunning natural beauty of the dense forests and mountain scenery, and the sense of adventure found on the remote unpaved tracks.
As a National Park, Saja-Besaya is home to diverse wildlife. While gravel biking, you might encounter various species, especially in quieter, forested areas. It's always advisable to ride respectfully, keep a safe distance from animals, and avoid disturbing their natural habitats. Early mornings or late afternoons might offer better chances for wildlife spotting.
Yes, the routes often start or pass near small towns and villages where you can find amenities. For example, the route starting from Reinosa or the loop from Ruente would likely have access to local cafes and services. Bárcena Mayor, a historic settlement, is also a notable point of interest in the area and may offer facilities.


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