Nachi Falls is Japan's tallest single-drop waterfall at 133 meters, one of the country's three greatest falls. Cascading from the Nachi Primeval Forest, a Natural Monument, it has been worshipped as a deity since ancient times and serves as the sacred body of Kumano Nachi Taisha. It forms the heart of the World Heritage Sacred Sites and Pilgrimage Routes of the Kii Mountain Range.

Nachi Falls has been venerated as a sacred deity since ancient times. According to tradition, Emperor Jimmu, upon landing in Kumano, perceived the falls as divine and began to worship it—marking the origin of its religious reverence. It is also said that a shrine was established beside the falls dur…