Enpukuji Temple, also known as Iinuma Kannon, is a historic Buddhist temple in Choshi City, Chiba Prefecture. The temple belongs to an independent branch of the Shingon Buddhist tradition and has been an important center of worship in the region for approximately 1,300 years.
Its mountain name is Iinumasan, and its principal Buddhist image is the Eleven-Headed Kannon, a form of Kannon, the bodhisattva of compassion. Enpukuji is also the 27th temple of the Bando 33 Kannon Pilgrimage, one of Japan’s traditional Buddhist pilgrimage routes.
The temple grounds include several notable structures, including the Choshi Great Buddha, a magnificent five-story pagoda, a historic bell tower, and the Nio Gate. The temple is also home to valuable Buddhist treasures, historic manuscripts, and an important civil-engineering heritage site.
Enpukuji follows a tradition associated with Shingon Buddhism, one of Japan’s major schools of Esoteric Buddhism. Shingon Buddhism places particular emphasis on ritual practices, sacred mantras, meditation, and the use of Buddhist images and mandalas.
The principal image at Enpukuji is Juichimen Kannon, or the Eleven-Headed Kannon. Kannon is a bodhisattva associated with compassion and is one of the most widely revered Buddhist figures in Japan.
The traditional mantra associated with the Eleven-Headed Kannon is:
On Makakyaronikya Sowaka
The temple’s traditional pilgrimage poem, known as a goeika, is:
“Kono hodo wa yorozu no koto o Iinuma ni
Kiki mo narawanu nami no oto kana”
The poem evokes the sound of waves at Iinuma and reflects the temple’s long-standing connection with the coastal landscape of Choshi.
According to temple tradition, the history of Enpukuji dates back to 724, during the Nara period.
The temple’s founding legend tells of a local fisherman who pulled a statue of the Eleven-Headed Kannon from the sea in his fishing net. The discovery was regarded as a miraculous event, and the area subsequently developed into a place of religious devotion.
Later, during the Konin era from 810 to 824, Kukai, better known as Kobo Daishi, is traditionally said to have visited the area and performed an eye-opening consecration ceremony for the Kannon statue.
Kukai was the founder of Shingon Buddhism in Japan and is one of the most influential Buddhist figures in Japanese history. His association with Enpukuji has contributed greatly to the temple’s religious importance.
From the Kamakura period onward, Enpukuji flourished under the patronage of the Kaijo clan, a powerful local family that controlled the surrounding area.
In 1578, a large Kannon Hall measuring eight bays on each side was constructed.
In 1591, the temple received a shuin, or officially recognized land grant, from Tokugawa Ieyasu. This helped establish the temple’s position and allowed further development of its buildings.
In 1702, during the Genroku era, the temple’s bell tower and tahoto pagoda were destroyed by fire.
The temple was subsequently rebuilt and expanded. In 1773, the Kannon Hall was enlarged to ten bays on each side, while the Nio Gate, bell tower, and tahoto pagoda were reconstructed.
Much of the historic temple complex was destroyed during an air raid in 1945.
The Kannon Hall, Nio Gate, bell tower, Taishi Hall, Horse-Headed Kannon Hall, Nijusan’ya Hall, Dakiniten Hall, and other buildings were lost in the fires.
One historic structure formerly known as Ryuzo Daigongen-do survived and is now preserved as Choko Shrine, located next to the temple.
Enpukuji has continued to rebuild and preserve its heritage in the postwar period.
In 2009, a magnificent five-story pagoda measuring 33.55 meters in height was completed, creating an impressive landmark within the temple grounds.
Since 2014, the temple has also held treasure exhibitions twice a year with the cooperation of the Shido Bunko of Keio University. These exhibitions provide visitors with opportunities to see rare historical and religious materials preserved by the temple.
The central area of Enpukuji is home to several important religious and architectural features.
Another part of the complex includes the Daishi Hall, dedicated to Kobo Daishi, the founder of Shingon Buddhism.
The area also contains the Nehanden Treasure Hall, where valuable objects and historical materials connected with the temple are preserved and displayed.
Enpukuji preserves a variety of valuable Buddhist artifacts and historical materials.
One particularly important object is a nyo, a type of Buddhist ritual percussion instrument. It is designated as an Important Cultural Property of Japan and is currently deposited with the Nara National Museum for safekeeping.
The temple’s historic Buddhist bell is inscribed with the year 1460 and is designated as a cultural property by Chiba Prefecture.
Another important work is the Painting of the Buddha’s Parinirvana, accompanied by three documents explaining its origin and history. Such paintings depict the Buddha Shakyamuni at the moment of entering parinirvana, symbolizing the end of his earthly life.
One of the most unusual attractions at Enpukuji is the Iinuma Survey Benchmark Stone.
This stone was established as a reference point for measuring water levels in the Tone River and Edo River. It played an important role in the history of Japanese river surveying and is regarded as one of the country’s early reference points for systematic river measurement.
In 2015, it was recognized as a Selected Civil Engineering Heritage Site by the Japan Society of Civil Engineers.
For visitors interested in engineering and infrastructure, the stone offers a fascinating perspective on a part of Japanese history that is quite different from the temple’s religious heritage.
Enpukuji is the 27th temple on the Bando 33 Kannon Pilgrimage.
The Bando pilgrimage connects 33 temples dedicated to Kannon across the Kanto region of Japan. Pilgrims traditionally visit these temples to pray to Kannon and may collect commemorative calligraphy and temple stamps as they travel from one sacred site to another.
For visitors from overseas, the pilgrimage offers a way to experience an important aspect of Japanese Buddhist culture while traveling through different landscapes and historic towns.
Enpukuji therefore occupies an important position within the traditional pilgrimage route.
Enpukuji is located in Choshi, a coastal city at the easternmost part of the Kanto region. The area is well known for its fishing industry, dramatic Pacific Ocean scenery, and historic relationship with maritime culture.
The temple’s founding legend itself is connected with the sea, since the principal Kannon image is traditionally believed to have been recovered from the ocean by a fisherman.
This connection between Buddhism and the sea gives Enpukuji a distinctive character among historic temples in Chiba.
Enpukuji is approximately a 5-minute walk from Kannon Station on the Choshi Electric Railway.
The Choshi Electric Railway is a small local railway serving the Choshi area, and traveling by train provides a pleasant way to explore the city and its surrounding attractions.
From Choshi Station, visitors can take Chibakotsu buses.
On the Sotokawa Line or Ashikajima Line, get off at Jinyamachi. Alternatively, on the Kawaguchi Line, get off at Choshi Kannon.
Highway buses from Tokyo Station toward Inubosaki and Choshi also stop at Jinyamachi.
Enpukuji Temple is much more than a historic Buddhist temple. It is simultaneously a place of pilgrimage, a center of religious devotion, a collection of traditional architecture and art, and a repository of valuable historical documents.
The legend of the Kannon statue recovered from the sea provides a fascinating introduction to the temple’s history, while the association with Kobo Daishi connects the site with the long tradition of Shingon Buddhism in Japan.
Visitors can also appreciate the imposing five-story pagoda, the Choshi Great Buddha, the bell tower, and other structures while exploring the temple grounds.
Enpukuji has experienced fires, war, reconstruction, and major changes in the surrounding community, yet it has continued to preserve its religious traditions.
Its cultural significance extends beyond its Buddhist heritage. Ancient bells, Buddhist paintings, manuscripts, rare books, and the Iinuma Survey Benchmark Stone demonstrate the many layers of history associated with the site.
The temple’s collection of rare books has also attracted attention in Japan. Some of its valuable historical texts have been featured on the television program Kaun! Nandemo Kanteidan, a popular Japanese antiques appraisal show.
In 2016, a Saga edition of Tsurezuregusa, a classic work of Japanese literature, received an appraisal of 15 million yen. In 2025, nine volumes of the Song-dynasty Chinese work Han Changli Ji received an appraisal of 300 million yen, highlighting the exceptional cultural value of some materials preserved by the temple.
Enpukuji Temple (Iinuma Kannon) offers visitors an opportunity to experience approximately 1,300 years of religious and cultural history in one location.
As the 27th temple of the Bando 33 Kannon Pilgrimage, it remains an important destination for Buddhist pilgrims. At the same time, its historic architecture, cultural treasures, civil-engineering heritage, and connection with Choshi’s coastal history make it an appealing destination for general travelers.
Whether you are interested in Japanese Buddhism, traditional architecture, history, art, pilgrimage culture, or the unique heritage of Choshi, a visit to Enpukuji provides a rich and memorable experience.