Yee Peng Sansai Floating Lantern Ceremony 2011 Lanna Katina Robe Offering & Yee Peng Sansai Floating Lantern Ceremony to Pay Homage to the Lord Buddha As a part of the community, Lanna Dhutanka intends to show social responsibility and environment awareness by creating a good image of Chiang Mai, and the serene peace of Buddhism, through the traditional activities of the Thai Lanna Katina Robe Offering Ceremony, and Yee Peng Sansai Floating Lantern Ceremony. These traditional ceremonies, to pay Homage to Lord Buddha, will be on October 29, 2011.