Stunning photos of strictly protected underground caves in Slovenia
08.11.2017
' ROBBIE SHONE - National Geographic '
Slovenia is a world-famous caving destination, with around 
8,000 jamas, or caves, located in a country that’s smaller than Vermont. Of those 8,000 caves, however, only around 20 are considered “show caves”—caves that contain a unique beauty and scale that rivals many of the much larger karstic topographies found in southeastern China, Vietnam, Laos, and Papua New Guinea.
A number of powerful rivers traverse Slovenia, mostly overland, but at a few unique locations the rivers will mysteriously disappear into the ground, down into a hidden filigree of subterranean conduits bore through the porous, cavernous limestone.