Mlynky, Gypsum cave in Zalissia, Ukraine.
Mlynky is an extensive cave system in the Ternopil region formed through gypsum deposits and shaped by water flow over geological time. The passages wind through multiple levels with varying rock formations and mineral deposits that define the interior.
The system was discovered in 1960 by a teacher and then systematically explored and documented over the following years. These early investigations established the foundation for understanding the structure and geological processes that shaped it.
The cave name originated from water mills constructed along the Mlynochky river, which influenced the development of the Zalissia village.
Access requires advance arrangements and visitors should bring their own lighting equipment. It is wise to wear comfortable clothes and sturdy footwear, as the passages have uneven surfaces and some slippery sections.
Inside there is a small freshwater lake with crystal waters lying in the underground passages. The lake is used by bat populations that inhabit the cave crevices and occupy the dark chambers.
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