The Škocjan Caves were inscribed as a UNESCO World Heritage Site in 1986. The Slovenian cave system was recognized for its exceptional underground landscape and its importance as a major natural phenomenon of the Karst region.
Škocjan lies on Slovenia’s Karst Plateau, the landscape that gave the geological term “karst” to the study of soluble-rock terrain. The caves were formed largely by the Reka River, which disappears underground and has carved immense passages, chambers and a dramatic subterranean canyon. The system’s scale and scenery distinguish it from an ordinary tourist cave.
The UNESCO inscription predates Slovenia’s independence in 1991, when the area was part of Yugoslavia. After independence, Slovenia continued formal protection through Škocjan Caves Regional Park. The site was also designated a Ramsar wetland of international importance in 1999. A common mix-up is confusing the 1986 World Heritage inscription with the later creation of the regional park or the 1999 Ramsar designation.