Grotte de La Verna, Sainte-Engrace

#3 of 10 in Nature in Basque Country
Cave · Hidden Gem · Nature / Park
Gape at the size of Grotte de La Verna, a capacious 4 hectare (12 acre) cavern in one of the largest cave systems in the world, extending 250 m (820 ft) wide and 190 m (623 ft) high. It's part of the Pierre Saint-Martin massif, which features 2,000 chasms--including a dozen or so reputed to be among the largest in the world. The site also features 380 km (236 mi) of underground explored cave systems and 13 major rivers. Today you can take a guided tour or hike into the world's tenth-largest cavern on your own via an access tunnel made for an underground hydroelectric plant. Dress warmly, as temperatures are cool underground. With our online itinerary creator, Sainte-Engrace attractions like Grotte de La Verna can be center stage of your vacation plans, and you can find out about other attractions like it, unlike it, near it, and miles away.
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270 reviews
  • Choice of mind blowing visits, standard, where you emerge from a tunnel into a space that would swallow St Paul’s cathedral, advanced, where you wear a harness, hard hat and acetylene head flame and.....  more »
  • This was an extraordinary experience. Although I am troubled by claustrophobia I not only managed the 800 metre tunnel to reach the grotto, but I was almost overwhelmed with the immensity of this...  more »
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