"The Iwa Shrine follows a distinct cycle for its two principal rites. The Single Mountain Rite is performed once every twenty years, while the Three Mountains Rite takes place every sixty years. Contrastingly, at , the frequency of the rites is reversed compared to Iwa Shrine: the Single Mountain Rite occurs every sixty years, and the Three Mountains Rite is celebrated every twenty years." It is said this similarity happened because the Iwa deity was invited to in ancient times through
Kanjō.
Single Mountain Rite The Single Mountain Rite is a festival at Iwa Shrine. It happens every twenty years. The shrine is in Ichinomiya Town, Shisō County, Hyōgo Prefecture. The festival honors Mt. Miya. This mountain is said to be the tomb of
Ōnamuchi-no-mikoto. One month before the festival, a new shrine is placed on the mountain top. A white flag is raised. The festival includes worshipping three mountains from afar. These are Mt. Takahata, Mt. Hanasaki, and Mt. Shirakura. A sacred palanquin is also carried to the river valley.
Three Mountains Rite Every twenty years, the Three Mountains Rite takes place at Iwa Shrine. This is to worship the three mountains. in Himeji City also holds these rites. At , there is a week-long event. A bamboo and cloth mountain is built. It is fifteen meters high. It is placed at the shrine's entrance. A small shrine is put on top of this. Food offerings are made. These offerings include mochi. ==Gallery==