Phi Ta Khon is a type of masked procession celebrated on the first day of a three-day Buddist merit-making holiday know in Thai as "Boon Pra Wate".

Participants of the festival dress up like ghosts and monsters wearing huge masks made from carved coconut-tree trunks, topped with a wicker-work sticky-rice steamer. The Procession is marked by a lot of music and dancing.