Kletno Bear Cave is the longest cave located in the Śnieżnik Mountains, which are part of the greater Sudeten mountain range. It was discovered in 1966, near the village of Kletno in Poland. It is famous for its many excavations of the cave bear.
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Official Website http://jaskinianiedzwiedzia.pl/
Address (Unnamed Road), 57-550, Poland
Coordinates 50°14'4.168" N 16°50'34.199" E