Girl swimming in a lake full of millions of golden jelly fish

This video of Nana Trongratanawong "surrounded by millions of golden jellyfish during a freedive at Jellyfish Lake, Palau." Although you can't see them, that "millions" figure is not an exaggeration: "Millions of golden jellyfish migrate horizontally across the lake daily."

I don't know if I should feel amazed or freak out.

According to Wikipedia, Jellyfish Lake "is amarine lake located on Eil Malk island in Palau." The lake is "connected to the ocean through fissures and tunnels in the limestone of an ancient Miocene reef."

The golden jellyfish almost disappeared from the lake in 1998, but now it is back into the millions. They migrate across the entire lake all day long in this pattern:

    • Night - For about 14 hours a day the jellyfish make repeated vertical excursions between the surface and the chemocline in the western basin possibly to acquire nitrogen and other nutrients from near the chemocline for their symbiotic algae.[2][11]
    • From early morning to about 0930 - The jellyfish move from center of western basin to the eastern basin
    • From early afternoon to about 1530 - The jellyfish move from eastern basin to near western end of lake
    • As the sun sets - The jellyfish move briefly eastward from western end to western basin where they remain through the night.

    Girl swimming in a lake full of millions of golden jelly fish


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