Pingtan Island is an attractive tourist destination off the east coast of mainland Asia south of the Min River estuary complex. One of its most well-known natural features that draws the crowds are the “blue tears.” This natural phenomenon is a blue glow that emanates from various species of plankton that bloom in the waters around the island and is seen on the island’s beaches and surrounding rocks.
Click here for original story, Studying impact of bioluminescent ‘blue tears’ on water quality around Pingtan Island
Source: Phys.org