The Shinto Kanamara Matsuri is an annual Japanese festival held each spring at the Kanayama Shrine in Kawasaki, Japan.
The exact dates vary: the main festivities fall on the first Sunday in April. The phallus, as the central theme of the event, is reflected in illustrations, candy, carved vegetables, decorations, and a mikoshi parade. The shrine is part of the Wakamiya Hachimangu Shrine and located near Kawasaki-Daishi Station.
The Kanamara Matsuri is centered on the Kanayama Shrine where the god Kanayama-hiko and the goddess Kanayama-hime are venerated. They are both gods of blacksmithing, metalsmithing, and metal works, and are also prayed to for easy childbirth, marital harmony, and protection from sexually transmitted infections.
The festival started in 1969. Today, it has become something of a tourist attraction and is used to raise money for HIV research.