Is the sunshine fluorescent sea only today?

The fluorescent sea is usually from April to May.

Marine life, insects, algae, bacteria and fungi can all produce magical bioluminescence. Different species have different reasons, such as camouflage, communication, courtship and bait. Bacteria and fungi emit light continuously, while algae and marine animals emit light intermittently. Cape Black, on the east coast of Anglesey Island in northern Wales, Australia, contains a large number of luminous plankton, and the time is not fixed. Whether you can see it with your own eyes depends on luck.