Kids fire super-powered water guns from the back of a zooming tuk tuk. A wrinkled woman blesses her grandchildren in a touching ceremony. Scented water showers over a Buddha image as thai rock music thumps. Hela annually from April 13-15 thai New Year, or Songkran festival, is a time to cleanse, pay respects and let loose in some of the world's wildest water fights. sawasdee phimai