Tasmania's coastline glows in the dark as plankton turn blue

Eerie scenes on north-west coast show bioluminescent waters from ‘sea sparkle’ The waters along Tasmania’s north-west coastline have taken on a bizarre, glowing appearance in recent days. Photographs taken off Preservation Bay and Rocky Cape showcase bioluminescent waters caused by a natural phenomenon known as noctiluca scintillans (AKA sea sparkle), which happens when tiny plankton turn blue in self-defence. The phenomenon, which is best seen in calm, warm seas, is foreboding