Loi Kratong: Held on a full-moon night in November. Every year thousands of people assemble floating banana-leaf containers (krathong) decorated with flowers and candles onto the waterways of the city to worship the Goddess of Water. Lanna-style hot-air lanterns (khom loi) are also launched into the air. These are believed to help rid the locals of troubles and are also taken to decorate houses and streets.