Sparkling blue water, known as "blue tears", appear at the beach of Xiamen, southeast China's Fujian Province, Feb. 13, 2022. Oceanologists believe it's caused by a kind of special algae in the water. (Photo/VCG)
Sparkling blue water, known as "blue tears", appear at the beach of Xiamen, southeast China's Fujian Province, Feb. 13, 2022. Oceanologists believe it's caused by a kind of special algae in the water. (Photo/VCG)
Sparkling blue water, known as "blue tears", appear at the beach of Xiamen, southeast China's Fujian Province, Feb. 13, 2022. Oceanologists believe it's caused by a kind of special algae in the water. (Photo/VCG)