Speleology. Old cave washed by an underground river in the mountain. - Ponor (swallow hole), gypsum cave. Bizarre forms of stalactites and gypsum incr

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Speleology. Old cave washed by an underground river in the mountain. - Ponor (swallow hole), gypsum cave. Bizarre forms of stalactites and gypsum incrustations (speleothem). Laos

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Size: 4589px × 3060px
Photo credit: © Maximilian Buzun / Alamy / Afripics
License: Royalty Free
Model Released: No

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