Swim among millions of stingless jellyfish.
Dive among submerged sculptures.
Snorkel over warm volcanic bubbles.
Snorkel over WWII bulldozers and trucks the US Army dumped into the sea.
Cathedral-sized salt chambers with an underground lake and Ferris wheel.
Underground cathedral carved into the tunnels of a working salt mine.
Drift between the American and Eurasian tectonic plates in gin-clear glacial water.
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