Best caves around Irun are found within the surrounding Basque Country, a region characterized by its diverse natural landscapes and rich geological history. Irun itself is a border town, offering access to both Spanish and French territories known for their unique cave systems. These subterranean sites range from ancient mining operations to natural formations and prehistoric art replicas. The area provides opportunities to explore significant natural features and historical insights.
Last updated: July 4, 2026
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The path branches off from the main trail and is unfortunately now completely overgrown.
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Access to the foot of the waterfall is dangerous and from the path, you can't see much ☹️
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BEAUTIFUL TRAIL WITH ULIA CLIFFS
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The Valley of Colors is an authentic open-air museum, where you will discover the magic that erosion can create over millions of years. In this magical place, you can enjoy numerous geoforms and a variety of colors in the rocks.
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The Aitzondo waterfall is located in the Aiako Harria natural park, at the western end of the Pyrenees. This waterfall is one of the largest in Guipuzcoa, with a drop of 140 meters that ends in a small pond.
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One of the peaks of Peñas de Aia is home to the Junkal cave, a cavity that is the object of mountain celebrations.
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On the coastal path of the route to the cliffs of Mount Ulia in San Sebastian we come across the Peña de Ataloi, this strange and beautiful rock formation in the shape of a cave that melts in your hands.
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Hello, I have already been to this waterfall, but do not know the way to get to the foot of the waterfall. Do you have a trace that goes there? Thanks
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The region around Irun offers a diverse range of cave experiences. You can explore ancient mining operations at the Arditurri Mines, marvel at impressive geological formations and paleontological finds at Arrikrutz Caves, witness world-renowned prehistoric art at Ekainberri, or discover natural cave systems with rich local legends at the Caves of Sare and Urdax.
Yes, several caves near Irun offer deep historical insights. The San Juan Xar Cave Shrine is a spiritual sanctuary with a long tradition. The Arditurri Mines in Oiartzun showcase over 2,000 years of mining history, dating back to Roman times. Additionally, the Caves of Urdax were once inhabited by prehistoric humans and served as hideouts for smugglers.
The Arrikrutz Caves in Oñati are renowned for their extensive network of tunnels filled with impressive stalactites and stalagmites. The Valley of Colors (Valle de los Colores) on the Basque coast features stunning sandstone caves, showcasing the magic of erosion over millions of years with numerous geoforms and varied rock colors.
While the original Ekain Cave, a UNESCO World Heritage site, is closed to the public, Ekainberri in Zestoa offers a meticulously crafted replica. This allows visitors to experience the world-renowned Upper Paleolithic cave paintings, particularly the iconic horse depictions, in an accessible and immersive way.
Many of the caves near Irun are suitable for families. Ekainberri provides an engaging and educational experience with its replica cave art and workshops. The Arditurri Mines offer guided tours with light and sound effects that can captivate children. The Caves of Sare and Urdax also provide accessible tours through natural formations.
The Arditurri Mines offer a unique blend of natural and industrial heritage. Located in Oiartzun, they provide a journey through 2,000 years of mining history, with an 800-meter-long tunnel open to the public. The experience is enhanced by a magical atmosphere created by light and sound, illustrating Roman mining techniques and the region's geological past.
At the Arrikrutz Caves in Oñati, you can expect to see vast and beautifully preserved geological formations, including impressive stalactites and stalagmites. The caves are also famous for significant paleontological discoveries, such as the complete skeleton of a cave lion, the first found in Spain, alongside remains of woolly rhinoceros and cave hyenas.
Yes, the Caves of Sare, also known as Lezea, are located in Sare, France, less than an hour's drive from Irun. These impressive natural cavities are nestled in the heart of the Axturia mountains and offer a glimpse into a unique natural habitat within a picturesque Basque village.
The region around Irun offers numerous outdoor activities. You can find various cycling routes, including easy options like the Hendaye Seafront Cycle Path loop, or more challenging gravel biking and MTB trails. For detailed routes and guides, explore options like Gravel biking around Irun, Cycling around Irun, and MTB Trails around Irun.
Cave temperatures are generally cool and constant year-round, regardless of outside weather. It's advisable to wear comfortable layers and sturdy, closed-toe shoes, preferably sports shoes, as surfaces can be uneven or damp. Some caves, like the Caves of Urdax, specifically recommend sports shoes for exploration.
The caves around Irun can generally be visited year-round, as their internal climate remains stable. However, visiting during spring or autumn might offer more pleasant weather for travel to and from the sites, and for combining your cave exploration with other outdoor activities in the surrounding Basque Country.
Yes, the Arditurri Mines are located within the Aiako Harria Natural Park. This park is also home to the Aitzondo Waterfall, which features amazing caves on the way to the falls, offering a blend of natural beauty and geological interest.
The Junkal cave is located on one of the peaks of Peñas de Aia, specifically at Muganix Summit (758 m). This cavity is a site for mountain celebrations, holding cultural importance for the local community.


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