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Visit the Pozalagua caves in the Carranza valley

Discover an unsolved scientific mystery inside the Pozalagua caves, one of the Basque Country's most spectacular geological curiosities.

7,00 €

The Cave of Pozalagua, discovered by chance in 1957, is located in the beautiful Karranza valley in the Encartaciones area, just 50 km from Bilbao.
It is 125 metres long, 70 wide and 20 high, and its mouth stands 500 metres above sea level. The route through it is labyrinthine, flanked by stalactites and towering flowstone, stalagmites and columns. Here you can admire one of the greatest concentrations of eccentric stalactites (helictites) in the world. These helictites defy the laws of gravity, forming whimsical shapes intertwining in all directions.
There is disabled access via a platform.


Travel back in time to 28 December 1957 and feel the thrill of exploring a new world, as the cave’s discoverers did back then.

You will venture inside in complete darkness, wearing a headlight only.  

Get to know Pozalagua in a completely different way!


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We work with local suppliers and the confirmation of availability is not always immediate. In order to have enough time get the confirmation, please make your reservation at latest before 18:00 the day before the activity. For activities that take place on Monday, please mek your reservation before friday at 18:00.

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