Best caves around Karrantza Harana/Valle De Carranza are found within the Armañón Natural Park, a region in Bizkaia known for its extensive subterranean network. This area features around 200 caves and sinkholes, offering diverse geological formations and historical significance. The natural landscape provides opportunities to explore both accessible show caves and more challenging speleological sites.
Last updated: May 23, 2026
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Karst area and rugged terrain. Few indications of the path to the top. Some milestone of stones and scattered orange signs. It is essential to carry a GPS to navigate.
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Today we made the official visit to the cave, it's a pity they didn't let us take photos inside.
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The Pozalagua cave is known for housing the largest collection of eccentric stalacticts in the world. Observing this curious phenomenon of nature is well worth a visit to the cave, considered an "underground cathedral". It is necessary to buy tickets and the visit lasts about 50 minutes. Keep in mind that it is quite cold inside the cave.
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La Torca del Carlista is one of several caves found in the Karranza valley. The cavity is located under the Peña Ranero mountain and a large part of it is located on Cantabrian soil. It stands out for its large size, as the main chamber is the fifth largest underground chamber in the world.
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Ramales has well-preserved architecture, with some Indian mansions with beautiful gardens and gates. The Revillagigedo palace (18th century) stands out. However, its most valuable heritage is the group of caves located at the beginning of the century by Alcalde del Río: Covalanas, La Haza, Cullalvera and Sotarriza house magnificent cave paintings inside.
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Just amazing and a ride for the whole family! It is a complex of karstic caves 12 km long with cavities of immense dimensions of up to 14 x 28 meters in some sectors. The water has been forming these incredible caves that fortunately today can be visited and explored. It is necessary to purchase tickets online, you can check here: https://cuevas.culturadecantabria.com/cullalvera-esp/
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In an exit of the town, totally accessible and in a fantastic environment.
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Both Cullalvera Cave and Pozalagua Cave are considered family-friendly. Cullalvera is described as an amazing ride for the whole family, while Pozalagua is well-adapted for tourism and offers guided tours.
Pozalagua Cave is notable for its accessibility, offering a platform for people with disabilities to explore its wonders.
Pozalagua Cave is world-renowned for housing one of the largest concentrations of eccentric stalactites (helictites). These unique formations defy gravity, twisting and intertwining in whimsical shapes.
Yes, the Ventalaperra Cave, located at the base of Mount Mirón, contains Paleolithic cave art, including figures of bison and a bear, believed to be from around 25,000 B.C. However, it is not open to the public and access is restricted to researchers. The area around Ramales de la Victoria also has caves with magnificent cave paintings.
Yes, Torca del Carlista is one of the largest sinkholes in Europe and is a significant attraction for expert speleologists due to its challenging access and its main chamber being the fifth largest underground chamber in the world.
A guided visit to Pozalagua Cave typically lasts about 50 minutes.
Yes, for popular caves like Cullalvera Cave and Pozalagua Cave, it is necessary to purchase tickets online in advance. You can check availability and book for Cullalvera at cuevas.culturadecantabria.com.
It is advisable to wear warm clothing, as it can be quite cold inside the caves, even during warmer months. Comfortable shoes with good grip are also recommended for walking on potentially damp or uneven surfaces.
The region offers a variety of outdoor activities. You can explore numerous MTB Trails, go running on scenic routes, or enjoy road cycling through the beautiful landscapes of Karrantza Harana/Valle De Carranza.
Yes, parking is available at Pozalagua Cave, making it convenient for visitors arriving by car.
Pozalagua Cave is often described as a "cathedral beneath the ground" due to its immense size and stunning beauty. It's particularly famous for its unique eccentric stalactites and was recognized as the "Best Corner" by the Repsol Guide in 2013.

