
Guide
Iwaya-ji Temple
5 min readOverview & Charm
Iwaya-ji is a temple of the Shingon-shu Buzan school located in Kumakogen, Ehime Prefecture. It is renowned as the 45th temple of the Shikoku 88 Temple Pilgrimage. Situated at an altitude of approximately 565m, it is a stunning mountain sanctuary surrounded by massive rock walls and ancient oak forests. The primary deity is Fudo Myoo, and the temple holds a unique form of worship where the entire mountain itself is considered the object of devotion. Along the approach, countless stone Buddha statues line the path, creating a landscape that seamlessly blends natural topography with spiritual devotion.
History & Cultural Background
According to legend, the temple's origins date back to 815 AD, when Kobo Daishi (Kukai) visited the area and encountered a celestial being. It is said that Kukai established the worship of Fudo Myoo, enshrining a wooden statue in the main hall and a stone statue in the rock cave of the Okunoin, effectively making the entire mountain a sacred entity. Historically, the site has been a center of faith, with records of the monk Soben visiting during the Kamakura period. Although many structures were lost to fire during the Meiji era, the Daishi-do Hall, Main Hall, and Sanmon Gate were reconstructed during the Taisho and Showa eras. Today, these buildings are preserved as precious cultural heritages that blend traditional Japanese architecture with unique stylistic elements.

Key Highlights
Iwaya-ji offers a variety of spots where nature and architecture harmonize:
- *Daishi-do Hall**: A National Important Cultural Property featuring a unique design with entasis (convex) columns and subtle Western architectural influences.
- *Main Hall (Hondo)**: Rebuilt in 1927, this hall is where visitors can offer prayers to Fudo Myoo and other deities.
- *Stone Buddhas & Approach**: The path is lined with a dense arrangement of stone Buddha statues, offering a changing, mystical view with every step.
- *Ana-zenjo (Water Sanctuary)**: A cave located directly beneath the main hall, housing Jizo Bosatsu and other stone figures, where natural spring water flows.
- *Nio-mon Gate**: A historic gate built in 1790 that exudes a sense of ancient gravity.
- *Okunoin**: A dynamic training area featuring the