Chao Le (Sea Gypsy) Boat Floating Festival (งานประเพณีลอยเรือชาวเล) falls during the middle of the sixth and eleventh lunar months yearly. The sea gypsy villages at Rawai and Sapam hold their ceremonies on the 13th Ko Si-re celebrates on the 14th and Laem La (east of the bridge on Phuket's northern tip) on the 15th. Ceremonies, which centre on the setting small boats adrift similar to the Thai festival of Loi Krathong, are held at night and their purpose is to drive away evil and bring good luck.