If you happen to be in Hoi An on the 14th day of any lunar month, explains Travelfish, “you’ll be treated to central Vietnam’s version of a full moon party.” Much of the festivities are centred at the Cau An Hoi Bridge and along the banks of the Hoai River, “where throngs of people sailing off paper lanterns in various colours build up the lively atmosphere,” writes Travel 3 Sixty. “All the buildings located within the ancient city of Hoi An start to turn their electricity off from 8pm to allow soft lights from the lanterns to illuminate the surroundings.”