15th Annual Smithsonian Magazine Photo Contest Natural World
Mystical River

Diving in Cenote Angelita where a cloud of hydrogen sulfide gives the appearance of an underwater river, complete with its own island. The cenote is a water-filled sinkhole, and the island is a mound of debris from the roof collapse. The cloud is formed by the anaerobic decomposition of organic matter such as leaft litter,

Photo Detail
Date Taken: 07.2016
Date Uploaded: 11.2017
Photo Location: Tulum, Mexico
Camera: E-M5
Copyright: © Tom St George
Photo of the Day: 12.13.17
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