Neon waves in California light up the night

Strange waves are making beach visitors in San Diego do a double take.

The ocean swells appear to be glowing.

A rare red tide caused by algae has been illuminating the waves at night, turning them into a neon show.

It's caused by a chemical reaction on the cellular level, Scripps Institution of Oceanography Professor Peter J. Franks told the latimes.com . He calls the phytoplankton "my favorite dinoflagellate."

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