The central Fudo Myoo statue is designated an Important Cultural Property of Japan.
The temple was founded in 725 AD by the monk Gyoki.
The name 'Oiwa' refers to the massive rock face into which the primary deity is carved.
Practitioners perform cold waterfall asceticism (takigyo) at the temple's San-bon Taki falls.
The temple serves as a base for pilgrims traversing the historic Tateyama mountain routes.
Local spring water at the site is recognized as one of the '100 Famous Waters of Japan'.
Oiwasan Nissekiji is a Shingon-sect temple famous for its 3.4-meter-tall stone Buddha, carved directly into the cliffside in the Heian period. The central icon is a Fudo Myoo statue, flanked by figures of Sei-taka and Kongara. The temple grounds feature a multi-tiered pagoda and a waterfall used for traditional 'takigyo' ascetic water-training rituals. It serves as a historic site for mountain asceticism linked to the Tateyama mountain range. Visitors can observe the 'Rokuhon-dori' stone statues which represent the six paths of existence. The surrounding Oiwa area is historically known for its temple-affiliated cuisine, particularly somen noodles served using local spring water.
The stone steps looking up toward the cliffside Buddha and the red lacquer pagoda.
Bring a change of clothes if you intend to participate in the supervised waterfall meditation sessions.
Sample the local somen noodles in the nearby village, which are chilled using the temple's spring water.
The path to the Buddha involves stairs; wear comfortable walking shoes with good grip.
Do not attempt the waterfall ritual without prior booking and instruction from temple staff.
Maintain silence near the Buddha carving; remove footwear before entering temple buildings.