Best natural monuments around Oseja are found within a landscape characterized by dramatic peaks, deep valleys, and significant geological formations. This region, nestled within the Picos de Europa National Park, offers a blend of wild nature and diverse natural features. Visitors can explore a variety of natural monuments, including impressive gorges, panoramic viewpoints, and unique caves. The area provides opportunities to experience the raw beauty of the Picos de Europa.
Last updated: July 1, 2026
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The Peñas del Cabo Caves are located on the western cliffs of the Peñas del Cabo, near Calcena, in the province of Zaragoza, Aragon. These caves are known for their impressive geological structure and speleothems, such as stalactites, stalagmites and flowstones. One of the most popular caves is the Cueva Honda, which has been used as a shelter for livestock and has housed archaeological remains from the Neolithic period. In addition, the cave is an important refuge for bat colonies during the summer. The caves offer a unique experience for caving and nature lovers.😊
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At this point we will find the detour that will take us to the various caves of Peñas del Cabo, the Honda cave being the most popular of all of them.
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Located at an altitude of 1,433 meters, we find the cairn at the top of Alto de Cabrera, with a panoramic view of the Sierra de la Virgen.
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Before going down the Cuartún ravine and passing through the homonymous cave, it is worth stopping to observe the beautiful and imposing Barrevinoso mole. If we go in the direction of Purujosa, to our left we can also see the Muela de Cuartún.
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The so-called "strait of Gibraltar" is located in the Valcongosto ravine, very close to the town of Purujosa. It is advisable to walk with firm footing since the terrain is usually slippery depending on the water level, but it is definitely worth it.
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Beautiful trail that runs through the top of the Sierra de Moncayo with magnificent views of the Peñas de Herrera, Cerro Morrón and surrounding mountains.
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The region around Oseja, nestled within the Picos de Europa National Park, offers a diverse range of natural monuments. You can discover dramatic gorges like the Valcongosto Gorge, impressive summits such as Pico Cabrera (1,433 m) – Sierra de la Virgen, and scenic viewpoints like the View of Peñas de Herrera from the Sierra de Moncayo. The area also features unique caves, deep valleys, and the imposing Desfiladero de los Beyos (Beyos Canyon).
Yes, the Peñas del Cabo Caves are notable for their historical context. The Cueva Honda, one of the caves in this system, has been used as a shelter for livestock and has housed archaeological remains from the Neolithic period, offering a glimpse into ancient human activity in the region.
For breathtaking panoramic views, consider visiting the View of Peñas de Herrera from the Sierra de Moncayo, which offers magnificent vistas of the Peñas de Herrera, Cerro Morrón, and surrounding mountains. Another stunning spot is the View of La Muela de Barrevinoso, providing an impressive perspective before descending into the Cuartún ravine. The Mirador del Tombo, near Cordiñanes de Valdeón, also offers spectacular views of the Cares Gorge and the Central Massif of the Picos de Europa.
The natural monuments around Oseja are excellent starting points for various outdoor activities. You can enjoy hiking on trails like the Valcongosto Gorges and Cuartún loop, or explore the Mirador de la Ermita de San Cristobal route. Cycling enthusiasts can tackle challenging routes such as the Calcena and Purujosa Loop via the Hidden Face of Moncayo. For more options, explore the hiking guide for Oseja or the cycling guide for Oseja.
While many routes in the Picos de Europa can be challenging, the Bosque de Vegabaño offers a more serene experience. Its meadows burst with flowers in spring, and the idyllic Refugio de Vegabaño provides a picturesque spot. For specific easy hiking trails, it's best to check individual route descriptions for difficulty ratings suitable for families. The hiking guide for Oseja can help you filter for easier options.
The best time to visit largely depends on your preferred activity. Spring brings vibrant wildflowers to areas like the Bosque de Vegabaño, while autumn transforms its leaves into stunning yellow and red hues. Summer offers generally good weather for hiking and exploring, though some areas can be busy. Winter can be beautiful with snow-capped peaks, but access to certain routes may be limited due to snow and ice.
The Picos de Europa National Park, which encompasses Oseja, is rich in biodiversity. You have a good chance of spotting various wildlife, especially in quieter areas. The Peñas del Cabo Caves are known to be an important refuge for bat colonies during the summer, offering a unique wildlife viewing opportunity.
Given the varied terrain and weather conditions in the Picos de Europa, it's advisable to wear sturdy hiking boots with good ankle support. Layered clothing is recommended, as temperatures can change quickly. Always carry waterproof and windproof outerwear, even on sunny days. Don't forget sun protection, a hat, and plenty of water.
The Valcongosto Gorge is often referred to as the 'strait of Gibraltar' due to its narrow passage, offering a truly unique walking experience depending on water levels. The Peñas del Cabo Caves, with their impressive geological structures and speleothems, also provide a distinctive adventure for caving and nature lovers.
The komoot community appreciates the diverse natural beauty. Highlights like the View of Peñas de Herrera from the Sierra de Moncayo and the Valcongosto Gorge are highly regarded for their scenic beauty and unique experiences. Visitors often share photos and upvotes for these spots, highlighting their appeal.
Yes, the Picos de Europa National Park is characterized by crystal-clear rivers. The Cares Route, though not directly in Oseja, follows the impressive Cares River through a dramatic gorge. Within the broader region, Lake Ercina is an elongated lake whose size was influenced by historical mining, offering a serene natural setting.
While many natural monuments are in remote areas, you will typically find cafes and pubs in the nearby villages. For example, if you are exploring areas near Purujosa or Calcena, you can find establishments to refresh yourself before or after your adventures. It's always a good idea to carry snacks and water, especially on longer excursions.


Extend your search for the best caves by checking out these guides of the top ones around Oseja: