Photographer Zheng Tongda captured ethereal of photos of a bioluminescence phenomenon called “blue tears” during a recent trip to Beilu Island, east China’s Zhejiang Province. /CFP
The iridescent blue light surrounded the edge of the coast. The “sea sparkle” is caused by marine-dwelling organisms that exhibit bioluminescence when agitated. /CFP
The phenomenon, known as “blue tears” in east China, is caused specifically by dinoflagellate algae species Noctiluca scintillans. /CFP
Rocks by the sea are surrounded by blue “sea sparkle”. /CFP