Cave of El Soplao, Show cave in Cantabria, Spain
The cave extends through 20 kilometers of underground passages adorned with stalactites, stalagmites, columns, and rare helictite formations that defy gravity.
Mining operations in the early twentieth century led to the discovery of this natural formation within the Sierra de Arnero mountain range.
The name El Soplao originates from mining terminology, referring to the air currents flowing through connected mine and cave galleries.
Located 83 kilometers from Santander, the cave maintains a constant temperature of 12 degrees Celsius and requires advance reservations for guided tours.
Within the cave complex lies a significant amber deposit containing fossilized insects, providing scientists with valuable data about ancient life forms.
Location: Cantabria
GPS coordinates: 43.29639,-4.41000
Latest update: May 27, 2025 09:58
Cantabria includes port towns, natural beaches, mountains, and prehistoric caves. The region features Santander with its urban beaches, medieval villages like Santillana del Mar, the Altamira Caves with Paleolithic paintings, and the Picos de Europa National Park. The coastline alternates between cliffs and sandy beaches, while inland there are green valleys and traditional villages.
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