beautiful native underground karst mineral lake Proval with pure blue water of Mashuk mountain in Pyatigorsk, Northern Caucasus,

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beautiful native underground karst mineral lake Proval with pure blue water of Mashuk mountain in Pyatigorsk, Northern Caucasus, Russia

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Size: 7360px × 4912px
Photo credit: © Olga Khomyakova / Alamy / Afripics
License: Royalty Free
Model Released: No

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