Best caves around Lezáun are found within a karst landscape characterized by numerous sinkholes and underground formations. The region's geology makes it a notable area for exploring natural subterranean features. Lezáun itself is known for its historical sites, including the Cueva del Cerro Viejo, which holds archaeological significance as a prehistoric burial ground. This area offers insights into ancient human activity and natural geological formations.
Last updated: October 7, 2026
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Very simple arrival path, and very interesting. Too bad access to the interior is closed, beyond the first 15-20 meters.
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Nice grotto with a virgin, very close to San Jerónimo
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Always impressive, I love it, absolutely recommended!!
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Small hermitage excavated in rock, fenced. Be careful with a honeycomb that is a little higher.
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The Portupekoleze arch-cave, located in the Urbasa mountain range, is the spectacular result of water erosion, which over the millennia has created this enormous arch in the rock.
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Of the most accessible and cool places with snow, the car park is less than 1 kilometer away
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Beautiful arch very close to the sale of Lizarraga. It can be accessed from the lower track or going up close to the cut from the inn itself. You can go down to the lower cave. This arch is an unavoidable "must" if you are in the area.
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It is impressive, be careful on foggy days, it is easy to get lost.
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Lezáun, whose name means "site of the cave" in Basque, is known for its karst landscape. You can find natural arches like Portupekoleze Arch, which is very accessible and impressive. There are also several natural caves such as Lezaundi, known for its beauty both inside and out, and the Virgin of Lourdes Grotto, a small hermitage excavated into rock.
Yes, the Portupekoleze Arch is highly recommended as a family-friendly option. It's described as one of the most accessible and impressive places in the area, with parking less than a kilometer away, making it easy to reach for all ages.
The region is rich in history, with the **Cueva del Cerro Viejo** being particularly significant. Archaeological discoveries, including prehistoric remains, indicate its use as an ancient burial site. This cave offers a glimpse into the distant past of human settlement in Lezáun, appealing to those interested in prehistory and archaeology.
For those seeking a more challenging experience, CuevaArleze is noted for its demanding access. Visitors have described a long, steep, leaf-covered slope to reach the cave entrance, suggesting it's best suited for adventurous individuals with appropriate gear and caution.
Access varies by cave. For instance, while Basaula Cave has a simple arrival path, access to its interior is currently closed beyond the first 15-20 meters. For other caves, it's advisable to check local conditions or specific highlight details before planning your visit.
The Lezáun area offers a variety of outdoor activities. You can explore numerous hiking trails, such as the moderate "San Blas Hermitage – Source of the Ubagua River loop from Lezaun" or the "Oskandia – Malkaxko (1,238 m) loop from Lezaun." For cyclists, there are traffic-free bike rides like the "Garimendi Viewpoint – Garimendi Forest loop from Abárzuza / Abartzuza." Find more details on these activities in the hiking guide, cycling guide, and running guide for Lezáun.
Yes, the Virgin of Lourdes Grotto is a small hermitage excavated into rock, featuring a virgin statue. It's located very close to San Jerónimo and offers a unique blend of natural and religious interest.
When visiting Lezaundi, it's important to be cautious, especially on foggy days, as it can be easy to get lost. The cave is impressive and offers a cool retreat during hot weather, but always prioritize safety and awareness of your surroundings.
While specific cave visiting times aren't always provided, the region's natural beauty, including its beech groves and trails, can be enjoyed throughout the year. For hiking and cycling, spring and autumn generally offer pleasant weather. For caves, consider that some might offer a cool escape during summer heat, as noted for Lezaundi.
Absolutely. The Portupekoleze Arch is not only a cave feature but also a significant natural monument and viewpoint. Its impressive structure and accessibility make it a popular spot for enjoying the natural landscape of the area.
When exploring the caves, always prioritize safety. Wear appropriate footwear, especially for areas with uneven or slippery terrain. For more challenging caves like CuevaArleze, be prepared for steep descents. If a cave's interior access is restricted, respect those closures. Always be mindful of your surroundings and any natural hazards.


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