Lantern Festival Lantern Diameter: 11.5 x 10.5cm The Lantern Festival is a festival held in Hoi An, Vietnam. Once a month, on the night of the 14th day of the lunar calendar, which coincides with the full moon, the city's lights are turned off, and the town is illuminated only by the light of lanterns. People in the town enjoy the festival in various ways, such as dancing, playing music, and participating in game competitions. The sight of only the lanterns floating in the evening of Hoi An is fantastic and nostalgic.