Songkran festival (Thai new year) in Chiang Mai (Thailand)

I had the chance to be in Chiang Mai during Songkran, the Thai New Year (April 13th through the following week-end). During this holidays period, a Thai tradition consists in throwing copious amounts of water to others as a way to wish a happy new year. Chiang Mai's old defensive moat provide a endless source of water for the occasion.