Nachi no Taki drops 133 metres in a single unbroken plunge, carving through basalt cliffs formed 14 million years ago during the Kumano volcanic phase. The cascade has anchored Shinto worship since the 4th century, when villagers began venerating the waterfall as the physical manifestation of the kami Hiryu Gongen. By the 8th century, Buddhist monks integrated the site into the Kumano Sanzan pilgrimage network, constructing Seiganto-ji Temple directly adjacent to the falls to create one of Japan's most photographed juxtapositions of natural and built sacred space. The waterfall sits within the Yoshino-Kumano National Park, a UNESCO World Heritage landscape since 2004 that protects 1,200 kilometres of stone-paved pilgrimage trails threading through cedar and cypress forests. Nachi Taisha, the Grand Shrine complex perched 300 metres upslope from the falls, consists of 13 subsidiary shrines rebuilt in vermillion lacquer after a 1581 fire. The Otaki-jinja shrine at the waterfall's base—accessible via a 467-step descent through moss-draped retaining walls—houses a viewing platform that places visitors 15 metres from the cascade's impact pool, where the constant mist sustains fern colonies and rare liverworts. The nachi falls tour from kyoto departs from the city's central station district, typically as part of multi-day Kumano Kodo itineraries that combine bus transfers with guided walking sections along the Daimon-zaka slope, a 640-metre cobblestone approach lined with cryptomeria planted in the 1600s. The route serves as the ceremonial entry to Nachi, climbed by an estimated 200,000 annual pilgrims and hikers. Nachisan village, a two-kilometre cluster of 40 guesthouses and provision shops at the mountain's base, has served wayfarers since the Edo period, when the Kumano routes rivaled the Ise pilgrimage in popularity. Seiganto-ji's three-story pagoda, reconstructed in 1972 following the original 1590 design, frames the waterfall in a composition that appears on countless travel posters and postage stamps. The temple's Nyoirin Kannon statue, a Heian-era carving in Japanese cypress, draws devotees year-round. The falls themselves are measured annually; the flow rate peaks in June during the rainy season at 1.5 tonnes per second, while winter months reduce the volume to a third of that, revealing more of the columnar basalt beneath.