Hakata Gion Yamakasa (博多祇園山笠) is a Japanese festival celebrated from the 1st until the 15th of July in Hakata, Fukuoka. The festivities are centered on the Kushida Jinja. The festival is famous for the Kakiyama, that weigh around one ton and are carried around the city as an act of float-racing. The festival is believed to be over 770 years old and attracts up to a million spectators each year. It was designated an Important Intangible Folk Cultural Property of Japan in 1979. The origin of the festival is believed to date back to 1241, when the founder of Joten-ji temple, monk Enni had people carry him around the town on a float, while praying in order to get rid of the plague which is considered to have been successful. The sound of the Yamakasa has also been selected by the Ministry of the Environment as one of the 100 Soundscapes of Japan.