Best attractions and places to see in Las Ubiñas-La Mesa Natural Park, a UNESCO Biosphere Reserve, encompass dramatic natural landscapes and rich cultural heritage in the central Asturian mountains. This mountainous territory features the Peña Ubiña Massif, the second-highest mountain system in the Cantabrian Mountains, with peaks exceeding 2,400 meters. The park is characterized by diverse natural features, including glacial and karst formations, ancient forests, and significant historical sites. It offers a range of attractions for nature enthusiasts and those interested in traditional Asturian life.
Last updated: May 26, 2026
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Popular around Las Ubiñas-La Mesa
Upon reaching the summit, you don't arrive at a village or a tourist center, but rather at a kind of natural balcony overlooking the Lena mountain passes, which gives a strange feeling, as if you've stepped onto an empty stage. And on clear days, the wind is louder among the mountain passes than any car, because traffic is minimal.
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For decades, La Cubilla was practically a ghost town: a road built to connect mining valleys, used more by livestock farmers and scattered trucks than by travelers. This lack of traffic left a remarkably clean route, free of curves, absurd straights, and modern widenings: pure mountain design from another era. That's why many cyclists say it "looks more like an Alpine pass than a Cantabrian one," with those giant limestone walls silently accompanying you.
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The food is very good, and the people who run it are very attentive. I recommend contacting them via WhatsApp to make a reservation.
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The La Cubilla mountain pass is located at an altitude of 1,683 meters, on the border between Asturias and León. Its rugged terrain and the beauty of its surroundings have earned it the title of stage finisher of the Vuelta a España, making it one of the most iconic climbs among cyclists.
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Before renting a bike from the "Oso goloso" rental shop in Proaza, you should know the following: the gearshift on the mountain bikes (without mudguards, bell, or luggage rack) is absurdly intentionally locked so that, out of a hypothetical 18 gears, you can only use 4 in the middle range (so the chain doesn't come off, hahaha). After you pay and sign, they'll explain this to you. However, this is completely unsuitable for riding the Bear Trail, especially the rather steep eastern variant with its very poor surface. Even with good fitness, you'll often have to dismount. Apparently, there's another rental shop in Proaza...
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Puerto de Ventana is a mountain pass located in the Cantabrian Mountains, between the Principality of Asturias and the province of León. It lies at an altitude of 1,587 meters and connects the municipality of San Emiliano in León with the Asturian municipality of Teverga. From the pass, you can enjoy a breathtaking view of the San Emiliano Valley, known as Babia de Yuso.
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In Santa Marina there are some steps that connect with the section of the Senda del Oso in the municipality of Quirós, perfectly conditioned in the valley of the river Trubia. In autumn the trees are colourful and the warm lights of the most suggestive season of the year envelop the landscapes in a very seductive luminous effervescence. Bárzana is the capital of the municipality of Quirós, it is on the other side of the river, like many villages along the route. The route of the old mining train runs solitary and hidden to the Valdemurio reservoir, a reserve for aquatic birds and an active leisure centre. The Senda crosses the Cuevafurada gorge through an illuminated tunnel and reaches the Caranga de Abajo detour. The Teverga branch deviates to the left, this is the path we will take later on the return from Tuñón. The route continues straight ahead through the tunnels of the Peñas Juntas and Peña Caranga Gorges to the Proaza valley, where the Bear Enclosure is located. At times you can see bears that live in semi-freedom and come to the Senda Enclosure to eat. The cycle route continues through Villanueva and ends at the Tuñón Recreational Area, set up at the Esgarrada bridge. There is a fountain, benches, a children's playground and a bear sculpture. The route returns along the same path to the Caranga de Abajo turn-off and continues through the Teverga valley. On the way back you can take advantage of the opportunity to visit the town of Proaza, connecting again with the Senda at the bridge of the Hydraulic Power Station. The Bear Enclosure is still beautiful, wooded and comfortable for cycling, small villages appear, well-lit tunnels and after several curves the canyon opens up and the houses of Entragu emerge between the trees. The stage continues for a couple of kilometres to San Martín de Teverga, an important crossroads and town with all services.
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The park is rich in natural beauty. You can explore the dramatic La Cubilla Pass and Ventana Pass, both offering breathtaking views of the surrounding mountains and valleys. The Huerta Cave is a significant karst formation, and the park also features ancient beech forests, particularly stunning in autumn, and glacial valleys like the Ports of Agüeria.
Yes, the park has a rich cultural heritage. You can discover the Abrigos Rupestres de Fresnedo, one of the richest rock art sites in the northwestern Iberian Peninsula. The region also preserves traditional Asturian mountain architecture in villages and 'brañas' (summer grazing areas) like Tuiza. Ancient Roman roads, such as the Camino Real de la Mesa, also traverse the area.
Las Ubiñas-La Mesa is ideal for outdoor enthusiasts. Popular activities include hiking and cycling along the Senda del Oso, a former mine railway route. The mountainous terrain also offers opportunities for mountaineering, especially around the Peña Ubiña Massif. You can find various routes for easy hikes, cycling, and road cycling throughout the region.
Absolutely. The Senda del Oso is a popular choice for families, offering a relatively flat and scenic path suitable for both walking and cycling. There are also several easy hikes available, such as the Valdemurio Reservoir Loop, which are great for all ages.
The park offers different experiences throughout the year. Spring and summer are excellent for hiking and enjoying the lush greenery. Autumn is particularly spectacular, as the extensive beech forests, like those in Montegrande and Valgrande, transform into vibrant reddish hues. Winter offers opportunities for snow activities, especially in higher altitudes, but some paths may be less accessible.
Yes, there are options for accommodation and dining. The Meicín Mountain Hut, located at 1560 meters in the heart of the Ubiña massif, serves meals and offers overnight stays. It's advisable to make reservations in advance. You'll also find cafes and pubs in the villages surrounding the park.
The park is a UNESCO Biosphere Reserve, renowned for its rich biodiversity. It's one of the few places where you might spot the Cantabrian brown bear. Other animals include roe deer, red deer, chamois, wolves, and various bird species like golden eagles and capercaillies. The Huerta Cave is also an important refuge for several bat species.
For beginners or those seeking easier walks, the Easy hikes in Las Ubiñas-La Mesa guide suggests routes like the Senda del Oso: Valdemurio Reservoir Loop or the Senda del Oso Greenway, which are relatively flat and scenic. These are great options for a relaxed experience.
Parking is generally available at the starting points of popular trails and near villages. For instance, to access the Meicín Mountain Hut, there is a car park in Tuiza de Arriba. Specific parking details often accompany individual trail descriptions or can be found in local tourist information centers.
Beyond the Huerta Cave, the park is characterized by intense glacial modeling, visible in broad valleys like the Ports of Agüeria. Karst formations, including sinkholes and dolines, are prominent in areas such as the Macizo de Ubiña, Sierra de la Sobia, and the Natural Monument of Los Puertos de Marabio.
Yes, the park offers excellent mountain biking opportunities. The La Cubilla Pass is part of the TransCantábrica BTT route, and the Ventana Pass also offers challenging ascents for mountain bikers. The Cycling in Las Ubiñas-La Mesa guide provides more detailed routes.
The Peña Ubiña Massif is a dominant feature of the landscape, being the second-highest mountain system in the Cantabrian Mountains with peaks exceeding 2,400 meters. It's a significant area for mountaineering and offers some of the most dramatic and expansive views in the park. The Meicín Mountain Hut serves as a base for exploring this massif.


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