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Yucatan Sinkhole (Webisode 55) Back to Webisodes »
A sinkhole is a deep pond created when the roof of a cave collapses and then the opening fills with water. In the Yucatan, Jonathan explores Muyal-Ha sinkhole, which is over 100 feet deep and has a false bottom created by clouds of sulfur. It’s an incredibly eerie place!
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Ginnie Springs Cavern Exploration
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Stargate Blue Hole