The variety of formations and the fact that they are concentrated in a restricted area means that the 712 caves currently identified make up a typical temperate-zone karstic system. Because they display an extremely rare combination of tropical and glacial climatic effects, they make it possible to study geological history over tens of millions of years.
Inscribed: 1995, Extension, 2000
Post card 1: Baradla Cave, Hungary
Thanks to Ms Rita.
Postcard 2: Dobšinská Ice Cave, Slovakia
Thanks to Ms Wanda who sent it from Poland.
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