Best caves around Areatza are found within a region rich in karst landscapes, particularly in the Gorbeia Natural Park. Areatza serves as a gateway to this area, which is home to nearly 500 cataloged sinkholes and caves. The geological formations here offer diverse opportunities for exploration. This area is known for its significant natural monuments and challenging cave systems.
Last updated: July 4, 2026
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This time I went about 100-200 meters, until I reached some stairs with something resembling railings. I didn't go any further because I was alone, without signal, and I was afraid of going any further.
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Like the Baltzola caves, it is now prohibited to cross them, due to the danger of Q fever.
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This part of the Baltzola caves was normally the exit.
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Impressive cavity, until a while ago you could go through. They have recently put up a sign, warning of the danger of contracting Q fever, and the passage is prohibited.
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Cave inside the so-called Great Central Crack, in the Itzina Massif. Its interior can be accessed by descending the ramp of the natural tunnel from the mouth of Axlegor, municipality of Orozko (Bizkaia).
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In the rainy season, you may not be able to cross the tunnel without getting your feet wet. But it is impressive to find this at the beginning.
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One of the most beautiful caves I have ever seen. First because of the location, second because of the small challenge of not getting lost to get there, and thirdly because it is super cool: a huge mouth and easy to travel (with a flashlight) a good stretch. Absolutely recommended.
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The region around Areatza, particularly within Gorbeia Natural Park and the wider Basque Country, offers several notable caves. For unique geological formations, Pozalagua Cave in Karrantza Valley is renowned for its eccentric stalactites. For prehistoric art, Santimamiñe Cave (with its virtual tour) and the Ekainberri replica of Ekain Cave are significant. Other impressive natural caves include Mairulegorreta, known for its huge galleries, and Supelegor, appreciated for its location and impressive mouth.
Yes, the region is rich in prehistoric sites. Santimamiñe Cave in Kortezubi is a UNESCO World Heritage site with nearly fifty ancient cave paintings, primarily depicting animals. While direct access to the original paintings is restricted, a detailed 3D virtual tour is available at the interpretation center. Similarly, the original Ekain Cave in Zestoa is famous for its well-preserved Paleolithic art, which can be experienced through the immersive replica, Ekainberri. Arenaza Cave, though currently closed to the public, is also significant for its archaeological findings and prehistoric art.
The caves in the region showcase diverse and impressive geological formations. Pozalagua Cave is particularly famous for having one of the world's highest concentrations of eccentric stalactites, known as helictites, which grow in whimsical shapes defying gravity. Other caves like Mairulegorreta and Supelegor feature vast chambers, stalactites, stalagmites, and flowstone formations typical of karst landscapes.
Yes, several options cater to families and those new to cave exploration. Pozalagua Cave is an excellent choice, equipped with metal walkways and disabled access, making it very accessible. Arrikrutz Caves offer guided tours specifically designed for families and children, where explorers can search for fossils and formations. The Ekainberri replica of Ekain Cave also provides an interactive and educational experience suitable for all ages. Additionally, the San Martín Hermitage and Caves offer two small, easily accessible caves next to a restored hermitage, perfect for a short family visit.
The Areatza region, nestled in Gorbeia Natural Park, is ideal for combining cave exploration with various outdoor activities. You can find numerous cycling routes, including challenging options like the 'Artea Village Inn loop' or more moderate ones like the 'Dima Village and Scenic Views loop'. For runners, there are trails like the 'Itxina Natural Monument Loop Trail' or routes to the 'Gorbea Summit Cross'. You can explore more options for cycling, road cycling, and running around Areatza.
Yes, the region is home to several natural monument caves. Mairulegorreta and Supelegor are both designated natural monuments within the Gorbeia Natural Park. Santimamiñe Cave is a UNESCO World Heritage site due to its significant Paleolithic art. These designations highlight their importance for geological, archaeological, or ecological value.
Visitors appreciate the diverse experiences offered by the caves. For instance, Mairulegorreta is praised for its impressive entrance and huge galleries. Supelegor is often described as one of the most beautiful caves, noted for its location and the manageable challenge of reaching it. The San Martín Hermitage and Caves are enjoyed for their peaceful setting and the small, accessible caves next to the restored hermitage. The komoot community has shared 47 photos and given 27 upvotes for the highlights in this area, indicating a positive visitor experience.
For those seeking a more challenging adventure, some caves in the region require specialized equipment and experience. The deeper parts of Mairulegorreta, for example, extend beyond easy access areas and necessitate caving gear. The Gorbeia Natural Park itself contains numerous cataloged sinkholes and cave systems, many of which are known for their challenging nature and are suitable for experienced cavers. However, it's important to note that some challenging caves like Abaro Tunnel and Baltzola Caves currently have prohibited passage due to health warnings.
Yes, Baltzola Cave in Dima is deeply embedded in Basque mythology. It is believed to be inhabited by mythological creatures like lamias, adding a mystical layer to its natural beauty. The approach to Baltzola also includes a scenic walk crossing the natural rock arch of Jentilzubi, which itself is associated with local folklore. While the passage through the cave itself is currently prohibited, its surroundings and the legends make it a culturally rich site.
It's important to be aware that passage through both the Abaro Tunnel and Baltzola Caves is currently prohibited. Signs have been put up warning of the danger of contracting Q fever. While the entrance to Abaro Tunnel is impressive and worth seeing, and Baltzola is known for its climbing and folklore, direct exploration of their interiors is not permitted at this time. Always check local regulations and warnings before planning your visit.
Yes, the Parketxe Areatza serves as the Gorbeia Natural Park visitor center in Areatza. It highlights the presence of caves as part of the park's geological formations and can provide further information about the natural park and its features. This is a good starting point for understanding the region's natural heritage.
Many caves maintain a constant temperature year-round, such as Pozalagua Cave which is consistently 13°C. This means cave exploration can be a good activity in any season. However, for caves with external approaches or those that might involve getting wet, visiting during drier seasons or when temperatures are milder might be more comfortable. For example, the Abaro Tunnel may have water during the rainy season, making passage difficult without getting wet.


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