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.
The cave is a must-see and, as you can imagine, I'd suggest going on the Adventure route!
Oyambre Beach is located on Cantabria's western coast only a few kilometers from the villages of Comillas and San Vicente de la Barquera.
It’s a fairly large beach (almost 2 km.) found in the Oyambre Natural Park. The combination of the fine white sand and extensive vegetation of the park makes it a place really worth visiting.
What I found most unusual about it is that it's very popular and even crowded even though it's somewhat hidden off the beaten path and the access ways are in poor shape.