Oggle the Ogoh-ogohs in Ubud Bali during the Balinese New Year Ngrupuk parade, a grand procession in which the Ogoh-ogohs, giant statues created in the form of mythological beings and demons, are lifted on bamboo poles and carried through the streets. The idea is to to scare off evil spirits and purify the environment for the coming year. The parade, which lasts well into the night, is culminated by a giant bonfire where the Ogoh-ogohs are burned as a symbol of self-purification.
The following day is known as the "Day of Silence" and is quite literally the quietest day in Bali you could imagine. Apart from the roosters crowing, a calming silence pervades the island. No one is allowed out on the streets, so people typically stay in their hotels and are encouraged to fast and mediate, like their Balinese hosts. Nyepi day usually falls in March, but the exact date is determined according to the Balinese calendar and can vary each year.