It is the ceremony that Saio-dai and females involved in the ritual soak their hands in the Mitarashi-ike pond and purify themselves, and it takes place at Shimogamo-jinja Shrine and Kamigamo-jinja Shrine every other year.
斎王代と女人たちが御手洗池（みたらしいけ）に手を浸し清める儀式で、下鴨神社と上賀茂神社両社で隔年交替で行われる。