Bangkok, Thailand CNN —On the surface, Thailand’s annual Songkran festival appears to be just one great big water fight. Pipad Krajaejun, a history lecturer at Bangkok’s Thammasat University, says it’s difficult to pinpoint exactly when the water fights became such a key part of the festival. (We’ll share more on the water fights below.) Some towns limit the water fights to one day, so be sure to check ahead if you’re planning to join the battles. Soe Zeya Tun/ReutersAmong the highlights of the festival is the Maha Songkran Parade, which will happen on April 11.

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