photos are were taken at one of australia 's popular beaches jervis bay , which is in the south coast of nsw .
the fluorescent glow is caused by millions of plankton omitting light , says photographer andy hutchinson .
a similar display was shown in sydney 's manly beach back in august 2014 .
iain suthers , of university of new south wales , says the algae blossoms in the spring and the autumn .