A flash mob activity to promote World Water Day was deluged by more than 100 people at a square in Jinan, Shandong province, on March 20, 2011.[Photo/news.bitauto.com]

A flash mob activity to promote World Water Day was deluged by more than 100 people at a square in Jinan, Shandong province, on March 20, 2011.

Related readings:  Hebei marks World Water Day

People gathered at around 2 pm and danced for about eight minutes, waving blue neckerchiefs on which slogans promoted saving water.

World Water Day is held on March 22 every year.

The video showing the flash mob has become popular online.