The Biggest Speleothems of the World


This is definitely not a ranking. It is just a list of extraordinary big speleothems of various kinds. Most of them are located in wild caves which are not open to the public, so they are not listed on showcaves.com.


Type Size Cave Location Explanation Picture
Explainsoda straw 9.13m Wonder Cave Gunung Mulu, Malaysia Longest single soda straw
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Explainsoda straw 9.03m Unnamed Cave Mexico Longest soda straw group, several straws over 8m in the group
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Speleothemrimstone pools 22m Actun Kotob Belize Tallest rimstone dam
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Speleothemrimstone pools 61m Xe Bang Fai Cave Laos Longest rimstone dam
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Speleothemrimstone pools L=610m, H=20m CaveWadi Sannur Cave Egypt Longest single rimstone dam formed on the surface. Wadi Sannur is a rare type of cave formed by roofing over of a giant surface rimstone dam at its spillover point. The rimstone dam was formed by a large thermal spring.
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Speleothemrimstone pools 400m ShowcaveTinazTepe Mağarları Turkey Longest connected rimstone pool series
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Speleothemcave formation 150m CaveLechuguilla Cave New Mexico, U.S.A. Flowstone cascade with greatest vertical extent, Neverland to Dead Sea
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Speleothemcave formation 17,700m CaveFort Stanton Cave New Mexico, U.S.A. Longest continuous formation, white calcite crust in a stream channel named Snowy River Passage
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Speleothemgypsum 1.98m Double Bopper Cave Arizona, U.S.A. Longest gypsum flower petal (supported)
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Speleothemgypsum 11m CaveCave of Swords Mexico Longest selenite crystal
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SpeleothemCave Pearl 290m² CaveGruta de las Canicas Mexico Some 200 million cave pearls cover the cave floor to a depth of more than a meter on 290m², which makes this the biggest deposit of cave pearls.
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