Škocjan Caves and a Slovenian underground cave river

In the Karst region of Slovenia is one of the largest cave systems in the world.  There is an underground canyon that is unsurpassed in size, a strange river that runs through the cave system, and a number of crazy cliffs and growths.  We walked through the cave and it opened up into this massive canyon - truly breathtaking. Unesco has even recognized the caves as a world heritage site.

 As you will see in teh coming posts, Slovenia is very very green 

 This is the Reka river, which flows underground for over 30 km

 Very quiet, very creepy 

 The old entrance to the caves which collapsed - not very reassuring...

 The Reka river 

 It flows insanely fast 

 Here it exits the cave and disappears back underground