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About Hells Bells
Hells Bells are hollow bell- or cone-shaped structures of carbonate that can reach lengths of 2 metres. They are found underwater in El Zapote cenote in Quintana Roo, Mexico, on the Yucatan Peninsula; similar formations exist in other caves. In a certain depth range, such structures cover the entire surface of the cave including submerged tree trunks and other Hells Bells, although they never touch each other.
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