Best canyons around Grau/Grado are located within the Asturias region of Spain, an area characterized by its lush green hills and mountainous terrain. This location provides access to a variety of gorges and natural features suitable for exploration. The landscape is shaped by rivers carving through limestone, creating deep valleys and impressive rock formations. It is a destination for outdoor enthusiasts seeking diverse natural environments.
Last updated: June 20, 2026
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This trail is very easy to walk, as it's mostly shaded. However, you should still wear good, sturdy shoes.
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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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The "Xanas," after whom the gorge is named, are Asturian mountain stream nymphs who enchant shepherds on St. John's Eve. The path was created in the 1930s as preparatory work for a planned road from Villanueva to Pedroveya, which ultimately never came to fruition.
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The Teverga Gorges are an impressive part of the Senda del Oso, a very popular hiking and cycling route in Asturias. This trail follows the route of an old mining railway and crosses the Valles del Oso, which include the municipalities of Quirós, Santo Adriano, Proaza and Teverga.
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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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This cycle path is part of Spain's greenways, which restore old abandoned railways. The route passes through tunnels, bridges and breathtaking canyons!
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The Grau/Grado area in Asturias, Spain, offers several impressive gorges. Among the most popular are the Route of the Xanas, known for its resemblance to the famous Ruta del Cares with steep walls and tunnels. Another highly regarded spot is the Desfiladero de Peñas Juntas on the Senda del Oso, an impressive gorge along a popular cycling route that follows an old mining train path.
The canyons in Asturias are characterized by deep riverbeds, impressive rock formations, and lush vegetation. You'll encounter steep limestone walls, natural slides, waterfalls, and deep pools carved by rivers. Many routes also feature tunnels and bridges, offering unique perspectives of the geological formations.
Yes, several canyons in the Asturias region cater to families and beginners. For example, the Desfiladero de Peñas Juntas on the Senda del Oso is part of a route suitable for all ages. The Barranco Rubo (Upper Sella River) is also popular for all levels of canyoning, with varying difficulties. Many guided tours in the region offer options specifically designed for families.
The best time for canyoning in Asturias is generally during the warmer months, from late spring to early autumn. Specifically, July through September is often recommended for aquatic canyons like Rio Simon (though this is in Friuli-Venezia Giulia, the principle applies to Asturias' aquatic canyons). Summer is ideal for canyons like Cobarcil, which can be impractical in other seasons due to water levels or cold.
Beyond canyoning, the area around Grau/Grado offers a variety of outdoor activities. You can explore numerous hiking trails, such as those detailed in the Hiking around Grau/Grado guide, or enjoy mountain biking and gravel biking on routes like the Senda del Oso. For cycling enthusiasts, there are also dedicated MTB Trails around Grau/Grado and Gravel biking around Grau/Grado.
Yes, Asturias offers several canyons for experienced adventurers. The Dobra Canyon in the Picos de Europa National Park is considered one of the best and most challenging in northern Spain. Other options include Vallegón and Carangas Canyons, which feature medium complexity and rappels up to 20 meters, and Viboli Canyon with 4-5 rappels, the largest being 20-25 meters.
For canyoning, it's essential to wear appropriate gear. This typically includes a wetsuit (provided by tour operators or rented), a helmet, and sturdy shoes with good grip that can get wet. Layers of quick-drying clothing are recommended, and it's advisable to bring a change of clothes for after the activity. Sunscreen and water are also important.
The Senda del Oso (Bear Trail) is a popular hiking and cycling path in Asturias that follows an old mining railway route. It traverses impressive gorges, including the Desfiladero de Peñas Juntas and the Senda del Oso Tunnel (Valdecerezales Gorge), offering spectacular views of large rock walls and deep valleys. It's a great way to experience the region's natural beauty without specialized canyoning equipment.
Many of the aquatic canyons in Asturias feature natural pools and sections suitable for wild swimming as part of the canyoning experience. While specific designated 'wild swimming spots' outside of organized canyoning might require local knowledge, the rivers and streams that carve these gorges often create inviting, clear water pools.
While the primary focus of the canyons is natural beauty, some areas in the broader region hold historical significance. For instance, the Senda del Oso itself is built on an old mining railway, offering a glimpse into the industrial past of Asturias. The region's history is often intertwined with its mountainous terrain and natural resources.
Visitors frequently praise the spectacular scenery and the unique experience of exploring these natural formations. The Route of the Xanas is often highlighted as a 'spectacle for the eyes and for the camera,' with its steep walls and lush vegetation. The Bear Trail is also celebrated for its breathtaking canyons, tunnels, and bridges, making it a favorite for both hikers and cyclists.
The Cares Gorge (Ruta del Cares) is a famous hiking trail in the Picos de Europa National Park, known for its stunning views and deep valleys. While primarily a hiking destination, parts of the Cares River do offer canyoning opportunities. It is accessible from Grau/Grado by car, though it requires a drive to reach the national park area.

