Postojna Caves are open all year round. Visits continue one and a half hour and the temperature inside the caves is a constant 8"C.
In Solvenia there are over 7,500 explored Karsts Cavesm vbut the largest and te most famous of the world is the postojna Cave system. it was created by nature for over 2 million years and it is registered on list the world's natural and cultural heritage of UNESCO. Drop by drop, the water formatted its magnificient stalactities and stalagmites in breath taking shapes. it is located only 50 km from Ljubljana (slovenia Capital) and is visited by thousand of tourists each year.