large opening with sunlight in Phu Pha Phet caves , Satun, Thailand

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Photo credit: © Crystite RF / Alamy / Afripics
License: Royalty Free
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Keywords: ancient, asia, asian, cave, cavern, geologic, geology, light, limestone, natural, nature, opening, pha, phet, phu, rock, rocky, satun, stone, sunlight, thailand, tourism, travel, tunnel, underground