Best caves around Berriz are found within the province of Biscay, a region known for its diverse natural landscapes and geological formations. The area features a mix of natural caves and those associated with historical or religious sites. These subterranean environments offer insights into the region's natural heritage and local traditions.
Last updated: August 23, 2026
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Impressive, both for its size and for being the best frame of Anboto.
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Much more modest than the famous "Big Cave," but very interesting. It has a small bar, like a pub.
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A beautiful two-eyed cave, normally occupied by flocks of sheep. It's a detour from the PR trail that descends from the Artola pass, to which you must return, unless you want to descend through the "very muddy" section of the Sagasta neighborhood.
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The best place to start the route to Alluitz.
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Located above a cave, this hermitage is next to the river and the old road that connected with the Cantabrian coast and Duranguesado. It is located next to a climbing area.
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Spectacular view of Anboto from the Udalatx cave. (Very close to the top)
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The region around Berriz offers a variety of unique caves. You can explore the Hermitage of the Holy Christ of Atxarte, a religious building situated above a cave, or visit the San Martín Hermitage and Caves, which features two small caves and picnic facilities. For impressive views, the View of Anboto from Udalatx Cave offers a spectacular natural frame for the mountain. Further afield, the Santimamiñe Cave is a UNESCO World Heritage site known for its prehistoric art, and Pozalagua Cave is celebrated for its stunning stalactite formations.
Yes, the region is rich in historical caves. The Santimamiñe Cave in Kortezubi is a UNESCO World Heritage site with evidence of human settlements over 14,000 years old and nearly fifty prehistoric cave paintings. While direct access to the original paintings is restricted for preservation, a detailed 3D virtual tour is available. The Hermitage of the Holy Christ of Atxarte is also a historical site, located above a cave next to an old road.
The Pozalagua Cave in Karrantza Valley is renowned as a 'cathedral of stalactites' for its vast array of stunning formations, which visitors can view from a metallic walkway. Baltzola Cave in Dima features intricate karst formations, including narrow passages, large caverns, and underground rivers, along with the natural limestone arch known as Jentil Zubi. The View of Anboto from Udalatx Cave is also impressive for its size and the natural framing it provides for the Anboto mountain.
Yes, several caves are suitable for families. The San Martín Hermitage and Caves is a restored site with two small caves, picnic tables, and benches, making it ideal for a family outing. The Hermitage of the Holy Christ of Atxarte is also categorized as family-friendly, offering an interesting historical and natural setting.
The difficulty varies depending on the specific cave. Some highlights like the Hermitage of the Holy Christ of Atxarte and View of Anboto from Udalatx Cave are rated as intermediate or challenging, often involving climbs or specific routes. Other sites like the San Martín Hermitage and Caves are more accessible. For caves like Baltzola, while walks to the entrance are possible, exploring deeper sections may require speleological experience and some areas might be restricted.
Direct physical access to some of the more intricate caves can be challenging. However, for the Santimamiñe Cave, while direct access to the original paintings is restricted, visitors can experience a detailed 3D virtual tour of the entire cave and its Paleolithic sanctuary, offering an accessible way to appreciate its beauty and history.
The area around Berriz is excellent for outdoor activities. You can find numerous hiking, cycling, and mountain biking routes. For instance, you can explore hiking trails around Berriz, including routes like the 'Santikurutz Summit loop.' There are also MTB trails and cycling routes that pass through scenic areas near the caves, such as the 'Aixola Reservoir loop' or routes towards Urkiola Sanctuary.
Visitors appreciate the blend of natural beauty, historical significance, and the unique experiences offered. Highlights like the Hermitage of the Holy Christ of Atxarte are valued for their location next to a river and climbing area. The View of Anboto from Udalatx Cave is praised for its spectacular views and impressive size. The community has shared over 15 photos and given 20 upvotes, indicating a strong appreciation for these sites.
Beyond the more prominent sites, you can discover places like the Water Cave, which, while more modest, offers an interesting experience and even has a small bar. Another option is Sagastikoba, a beautiful two-eyed cave often occupied by sheep, which can be reached via a detour from the PR trail descending from the Artola pass.
Baltzola Cave, located in Dima within the Urkiola Nature Park, is an intricate karst labyrinth featuring narrow passages, large caverns, and underground rivers. It's also known for the Jentil Zubi (Bridge of the 'Gentiles'), a natural limestone arch connected to Basque mythology. It's a popular spot for speleologists and climbers, and visitors can enjoy walks to the caves and the Jentilzubi Bridge, immersing themselves in the mythological atmosphere. Note that some parts of the cave may have restricted access due to preservation efforts.
Caves generally offer a consistent climate year-round, making them less dependent on seasonal weather than outdoor activities. However, access roads and surrounding hiking trails might be more pleasant during spring and autumn when temperatures are mild. Summer can also be a good time to escape the heat, while winter might present challenges with icy paths or heavier rainfall impacting outdoor routes to cave entrances. Always check local conditions before your visit.
Parking availability varies by location. For some sites like the San Martín Hermitage and Caves, facilities are available. For others, like the Hermitage of the Holy Christ of Atxarte, which is next to an old road, parking might be more limited or require a short walk from a designated area. It's advisable to research specific parking options for each cave you plan to visit.


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