The Rio Camuy Cave, Puerto Rico

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Cascading On and On

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The Gigantic Waipi'O Bluff, Hawaii

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Devetashka Cave, Bulgaria

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Taking an Amber Swim

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Swimming in the Cenote Ik Kil, Mexico

Via The World Geography

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Spelunking Makes for a Great Trip

Via Alvarez Photography

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Ohio Has Its Own Beautiful Locales

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Getting Familiar With the Morteratsch Glacier

Via zanettifoto

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Looking Down the Subway at Zion national Park

Via vtgohokies

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The Light at the End of the Cave

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Admiral's Arch, Australia

Via Reddit

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Approaching the Bottom

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The Ancient City of Petra, Jordan

Via Web Urbanist

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Take Shelter and Enjoy the Beach

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A Verdant Piece of Grotto

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