By Stephanie Pappas, Live Science Contributor | June 21, 2017 12:38pm ET

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Alyn Wallace captured this image of bioluminescent plankton at Three Cliffs Bay near Swansea on June 19, 2017.
Credit: Alyn Wallace/Caters news


A photographer experienced a magical moment near Swansea, Wales, this weekend as the sea glowed and glimmered an otherworldly blue.

Alyn Wallace, a landscape and astronomy photographer based in South Wales, posted on Facebook a shot of beautiful ocean bioluminescence under the Milky Way taken the night of June 18, calling it "one of the most incredible experiences" of his life.

"Every step and splash I made just lit up with an unreal blue glow," Wallace wrote.

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