http://www.hotelslovenia.si/ Caves Of Slovenia represent one of the must do in a complete To Travel To Slovenia tour. Rating among the most outstanding caves in the world, the Skocjan Caves Slovenia present the most meaningful underground phenomena in both the Karst region and Slovenia. Because of their exceptional importance, the Skocjan Caves were inserted on UNESCO’s list of natural and cultural world heritage sites in 1986. International scientific circles have thus acknowledged the importance of the Caves as one of the natural gems of Slovenia and planet Earth.