Raufarholshellir lava tube tunnel and caves, one of the longest in Iceland, formed by flowing lava which moved beneath the hardened surface of a lava

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Raufarholshellir lava tube tunnel and caves, one of the longest in Iceland, formed by flowing lava which moved beneath the hardened surface of a lava flow

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Size: 6000px × 4000px
Location: Iceland
Photo credit: © dnaveh / Alamy / Afripics
License: Royalty Free
Model Released: No

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