A crash course in changing the world.
Crowds of people gathered on this event. People have off day from work in order to make their own contribution to clean the water of rivers and seas, whatever water source is available nearest. People will first clean inside water, aroud water if there is necessity and then will swim or pour water on each other. This can be funny and memorable day. Attendants will be required to wear swimming dress if religion allows. Dresses will in blue colour showing purity of water.