8 Caves Every Adventure-Seeking Traveler Should Visit

Advertisement

6. Škocjan Caves, Slovenia

Shutterstock
Shutterstock

See the biggest underground canyon in the world in the Škocjan Caves, a karst cave system that’s renowned as a natural gem with a place on the UNESCO World Heritage list. Carved out by the Reka River, the cave reaches 140m in height. The Cerkvenik Bridge crosses at one of the highest points – don’t look down if you’re scared of heights!