Waterfalls around Selaya, a municipality in Cantabria, Spain, are found within a region characterized by its natural landscapes and river systems. The area's diverse terrain, including the Pasiegos valleys, contributes to the formation of numerous waterfalls. This makes Selaya a notable destination for exploring natural water features and engaging in outdoor activities. The municipality offers various opportunities for hiking routes with waterfalls.
Last updated: July 3, 2026
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It really is an amazing trail, a delight of waterfalls.
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I agree with Lucía, a beautiful trail, especially in spring.
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The mill dates from the 18th century and is located in a picturesque setting on the bed of the Rubionzo stream. It is currently restored and works as a rural house, it has a picnic area next to it and a few meters away is a beautiful waterfall.
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Nice place to take a break, lunch, or refresh your legs. In summer normally is busy by locals, but out of season is a chill place to see. It's just 20m out of the road. The best views are from the bottom, walking another 50m by a path.
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It is a small one-shaft mill located on the banks of the Rubionzo River. This took advantage of the energy generated by the waters to move the machinery inside and thus grind the neighbors' grains to prepare for winter. It is an example of a riverside mill that shows us the intensive use of resources that the inhabitants of these lands undertook in past centuries, generally destined for the winter grinding of corn that was grown in the valleys or cereal imported from Castile. This House-Mill of Rubionzo (S.XVIII) is now rehabilitated now as a rural dwelling, it still conserves its machinery and all the infrastructure that entailed the organization of the space around it: bridges, dams, canals, chamberas for cars, etc.
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La Garma is supposedly the end of the PR-S79 trail route and is where the Pisueña river is said to be born, although it is not like that and it does so higher up. At first glance you see a sign that tells you that it is La Garma and you see a small waterfall and the small river that you can cross, and a sign that says that you do not continue the path and you are about to turn around and go down ... . But the place has a trick because even if it is not indicated in any way, you just have to cross the river and carefully go down the river on the other side and you will find a couple of beautiful waterfalls and a small backwater which you can enjoy.
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A beautiful path along the river, enjoying the riverside trees and some great waterfalls (some spectacular). The path is recommended at all times of the year, although in summer it must be wonderful to shelter from the sun in the cool of the trees. In the rainy season you can enjoy more water in the river and the most spectacular waterfalls. You have to be careful with mud and stone, which can slip, so proper footwear is recommended. For the rest, we must repeat.
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Beautiful path bordering the Aján river. If it rains you have to be careful because being completely full of stones and mud it can slip, otherwise enjoy the riverside scenery and from time to time with some beautiful waterfalls that will not leave you indifferent.
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Selaya offers several captivating waterfall trails. The Aján River Waterfalls trail provides beautiful riverside scenery with multiple cascades. Another must-see is the Waterfalls on the Senda del Río Engaña, which features a path along the river with various impressive waterfalls, including the Cascada de la Osera. You can also explore the La Garma Waterfalls, located near the source of the Pisueña river, which offers multiple cascades and a small backwater.
The waterfalls around Selaya are beautiful year-round. During the rainy season and after snowmelt, typically in spring and autumn, the water flow is at its most spectacular. While summer offers cool shade along riverside trails, be mindful of potential mud and slippery stones during wetter periods, so appropriate footwear is recommended.
Yes, the Pozo Guarguero Waterfall is an excellent option for families. It's quite accessible, located just 20 meters from the road, with the most impressive views obtainable by walking an additional 50 meters along a path to its base. This waterfall forms a lovely pool and is a great spot for a break or to refresh your legs.
The difficulty of trails varies. For instance, the route to Pozo Guarguero Waterfall can be reached via a moderate 6.5 km hiking route from Salcedillo Recreational Area, or with a very short walk from the car. Trails like the Senda del Río Engaña are generally enjoyable but can be muddy and slippery, requiring appropriate footwear. Always check specific route details for elevation gain and terrain before heading out.
Yes, some waterfalls offer opportunities for wild swimming. For example, the Cascada de la Osera, found along the Senda del Río Engaña, creates a shallow pool suitable for bathing. Additionally, the La Garma Waterfalls feature a small, inviting backwater that visitors can enjoy.
Beyond the waterfalls themselves, you'll encounter diverse natural beauty. Expect lush riparian trees along river trails, dense forest sections, and scenic viewpoints offering panoramic vistas of the Pasiegos valleys. The area is characterized by its natural landscapes and river systems, providing a rich environment for exploration.
Yes, the area around Selaya offers historical interest. Along the Senda del Río Engaña, you can find the abandoned La Engaña railway tunnel and the ruins of associated buildings. Additionally, the Rubionzo Mill, an 18th-century mill located on the banks of the Rubionzo River, is a restored historical site that also features a small waterfall nearby.
Parking availability varies by location. For instance, Pozo Guarguero Waterfall is very close to the road, making it easily accessible by car with a short walk. For longer trails, it's advisable to check specific route information for designated parking areas or starting points like the Salcedillo Recreational Area.
The region around Selaya is excellent for various outdoor activities. You can find numerous running trails, such as the 'Túnel de la Engaña – running circular on the Aján trail', which is a moderate 9.6 km route. There are also extensive cycling and road cycling routes available, including challenging loops like 'Puerto de La Braguía – Church of Vega de Pas'. For more details on these activities, you can explore the Running Trails around Selaya and Cycling around Selaya guides.
Yes, the Pasiegos valleys are rich with waterfall hikes. The Aján River Waterfalls trail is a prime example, offering a delightful experience bordering the Aján river. The Senda del Río Engaña also traverses a stunning landscape with a succession of waterfalls over a 15-kilometer stretch, particularly between Marruya and Santelices.
Visitors frequently praise the natural beauty and tranquility of the area. They enjoy the riverside scenery, the impressive cascades, and the opportunity to shelter from the sun in the cool of the trees during summer. Many appreciate the chance to explore both accessible spots and those requiring more extensive hiking, often highlighting the photographic opportunities and the serene natural environments.


Happy to travel a little further afield? Then browse these guides for the best waterfalls around Selaya: