Tourists view "blue tears" over the coastal waters at night in Dalian, northeast China's Liaoning Province. Caused by bioluminescence, this phenomenon has drawn many viewers. (Photo/VCG)
Tourists view "blue tears" over the coastal waters at night in Dalian, northeast China's Liaoning Province. Caused by bioluminescence, this phenomenon has drawn many viewers. (Photo/VCG)
Tourists view "blue tears" over the coastal waters at night in Dalian, northeast China's Liaoning Province. Caused by bioluminescence, this phenomenon has drawn many viewers. (Photo/VCG)