This cave was opened to the public in 2005, but it was really discovered in 1908. It's one of those places where nature goes on a whim and uses only water to create dazzling rock formations.
The Soplao cave has the highest concentration of “eccentric” stalactites and stalagmites in the entire world. The stalactites grow out randomly in every direction any seem like a rock forest or a stone coral reef.
This is an unusual phenomenon and is only found in a few caves. Of course, it's much nicer to see it in person. To see the cave, there's the standard route (€10.50) that's fully accessible for people with disabilities. Or, you have the Adventure route (32€) where, with a suit and helmet provided by the guides, you can explore the interior of the cave. This visit is more expensive than normal, but it lasts 2.5 hours and you’ll see many more chambers that have not been changed by human hands.