Dobsina Ice Cave or Dobšinská Ice Cave or Dobsinska ľadová jaskyna (in Slovak) is an ice cave in Slovakia, near the mining town of Dobsina in the Slovak Paradise. Since 2000 it is included in the UNESCO World Heritage list as a part of Caves of Aggtelek Karst and Slovak Karst site. It lies 130 m above the Hnilec River, and the entrance is at an altitude of 970 m.The cave was discovered on 15 June 1870 by a royal mining engineer Eugen Ruffinyi, accompanied by G. Lang and Andrej Mega, though the entrance was known from time immemorial by shepherds and hunters as Studena diera (Cold Hole).
The cave was opened to the public one year after its discovery. In 1887, it was the first electrically lit cave in Europe.The cave floor descends from the entrance which faces North; this results in rapid cooling of the cave in winter as cold air can fall down. On the other hand, the interior is quite protected from the warm environment in summer. Thus the annual temperature average stays around 0 degree Celcius. The cave iced up, as this cycle repeated for many centuries. The age of the cave is estimated at approximately 250,000 years.