The three waterfalls—Ondaki, Medaki, and Tengu-taki—have been used for ritual waterfall meditation (takigyo) by practitioners of Shugendo for centuries.
Ondaki is the largest of the three falls, measuring approximately 15 meters in height.
The name 'Kuroyama' translates to 'Black Mountain,' referring to the dense cedar and cypress forests surrounding the gorge.
The area is officially designated as part of the Kuroyama Prefectural Natural Park in Saitama Prefecture.
The waterfall basin is characterized by unique geological layers of sandstone and shale typical of the Chichibu region.
The site was historically a stop for pilgrims traveling toward the Kanto region's mountain temples.
Kuroyama San-taki consists of three distinct falls—Ondaki, Medaki, and Tengu-taki—located within the prefectural natural park in Ogose, Saitama. The site is known for its historical association with mountain asceticism, where practitioners historically used the cascades for training. The two main waterfalls, Ondaki and Medaki, are connected by a short hiking path that leads from a stone-paved approach area. A viewing platform provides a vantage point for observing the falls within the forested ravine. The area is situated in the upper reaches of the越be (Ogose) river basin. The site features a traditional rest house nearby and a small shrine marker dedicated to the spiritual history of the waterfalls. The terrain is rocky and features significant elevation changes typical of the foothills of the Kanto Mountains.
The wooden bridge and viewing platform facing the Ondaki waterfall, which provides the clearest sightline of both the drop and the basin.
Wear sturdy, non-slip footwear as the path near the waterfalls is frequently wet and can be slippery.
Bring insect repellent during the summer months due to the high humidity and dense forest cover.
Check the local Saitama weather reports before visiting, as heavy rain can make the trails treacherous.
Do not attempt to climb the wet rocks around the waterfall basin, as they are prone to collapse and are extremely slippery.
Maintain silence as the site is considered a location for spiritual reflection; do not leave trash or disturb the stone shrines.
