
Guida
Iwaya Shrine is a historic shrine located in Toho Village, Fukuoka Prefecture. Its most striking feature is the main hall, which is built directly into a natural hollow within a massive rock formation. This unique architectural style showcases a traditional Japanese landscape where nature and spirituality are one. Furthermore, the shrine is famous for enshrining the 'Hojuseki' (Jewel Stone), which is said to grant wishes, providing visitors with a truly special and mystical experience.
The history of the main shrine is ancient; it was established in 1698 (Genroku 11) by Kuroda Tadamasa, the 4th lord of the Fukuoka Clan. Due to its significance in relation to the Hikiyama Shugendo (ascetic training), the shrine was designated as a National Important Cultural Property in 1988. According to legend, during the reign of Emperor Kinmei, a brilliant light descended upon the rock from the heavens. This light was named the 'Hojuseki' (Jewel Stone), representing a wish-granting gem, and it is enshrined as the sacred object of worship. The shrine honors three deities: Izanami-no-Mikoto, Izanagi-no-Mikoto, and Amenohobumi-no-Mikoto.

The most notable sight is the outer hall, which utilizes the steep, natural rock cavity. The structure is extremely rare, as the back and left sides have no roof or walls, leaving the natural rock face exposed. This sight provides a visual understanding of the ancient Japanese way of worshipping nature. The historical background surrounding the Hojuseki stone also adds immense cultural value to your visit.
Because the shrine is nestled in a lush natural environment, it offers different expressions depending on the season. Visiting during seasons when the surrounding greenery is deep and vibrant, or when the air is exceptionally clear, is ideal for feeling the weight of history in silence. We recommend visiting during bright daylight hours to clearly observe the texture of the massive rocks and the intricate structure of the main hall.
Here, you can witness firsthand the fusion of traditional Japanese shrine architecture and the natural world. While exploring the historic buildings, you can connect with ancient forms of faith. It is a perfect place to deeply learn about Japanese spiritual culture and historical backgrounds in a serene environment.
The area around Toho Village is characterized by beautiful, abundant nature. After visiting Iwaya Shrine, we recommend taking a stroll through the surrounding landscape. This region, where history and nature harmonize, is an ideal place to experience the peaceful atmosphere of rural Japan.
Please note the following when visiting the shrine: