Bioluminescence turns the sea electric blue off the coast of Anglesey
Environment

Bioluminescence turns the sea electric blue off the coast of Anglesey

26 Jun 2026 · Originally published 26 Jun 2026 8/10 Original headline: Incredible sight as sea turns a mystical blue off Welsh coast
Photographers at Penmon Point captured the sea glowing bright blue on Saturday night due to a natural display of bioluminescence. This phenomenon is caused by microscopic plankton emitting light when disturbed, offering a rare and vivid look at marine life in North Wales.
Source: WalesOnline Isle Of Anglesey
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