Thailand's Songkran New Year festival, centered on Chiang Mai and Bangkok each April, turns entire cities into a multi-day water fight as millions of residents and tourists soak each other in a traditional cleansing ritual. It is routinely described in travel and media coverage as the world's largest water fight.
Record no. MRB-2026-005781
World's Largest Water Fight (informal record)
Reference Record – Not Certified
This record is compiled from publicly available sources for reference. It has not been examined or certified by The Book of World Records.