Koryuji Main Hall: A Masterpiece of Muromachi Architecture in Shikoku's Maple Temple

Deep in the forested hills of Saijo City, Ehime Prefecture, stands one of Shikoku's most treasured religious buildings — the Main Hall (Hondo) of Nishiyama Koryuji Temple. Built in 1375 during the turbulent Muromachi period, this Important Cultural Property is a rare surviving example of medieval Japanese temple architecture that harmoniously blends traditional Japanese (wayo) and Zen (zenshuyo) building techniques. Surrounded by hundreds of Japanese maple trees that blaze with color each autumn, the hall offers visitors an unforgettable encounter with both spiritual heritage and natural beauty.

A Temple with Over 1,300 Years of History

Nishiyama Koryuji Temple traces its origins to the year 642 CE, when the monk Kuhatsu Shonin is said to have established a hermitage on this mountainside. Over the centuries, the temple grew in prestige: it received visits from the revered monks Gyoki, Hoon Daishi, and Kobo Daishi, and was eventually elevated to the status of an imperial prayer temple (chokugan-ji) during the reign of Emperor Kanmu. As a head temple of the Daigo School of Shingon Buddhism, Koryuji has long served as one of the most important religious centers in the Toyo region of eastern Ehime.

Today, the temple holds the distinction of being the 10th stop on the Shikoku Bekkaku Twenty Pilgrimage and the 22nd stop on the Shikoku Thirty-Six Fudo Pilgrimage. Its grounds contain numerous nationally and prefecturally designated cultural properties, including the Main Hall, a bronze bell cast in 1286, and a stone hokyoin-to pagoda from the Kamakura period.

Why the Main Hall Is an Important Cultural Property

The Main Hall of Koryuji was designated as a national Important Cultural Property on May 27, 1907, making it one of the earliest buildings in Ehime to receive this recognition. Several factors contribute to its exceptional cultural value.

The hall measures five bays across the front (ketayuki) and six bays deep (harima), making it a large-scale single-story structure. Its hip roof (yosemune-zukuri) features an unusually short ridge beam, giving the building a distinctive silhouette that at first glance resembles a pyramidal (hogyo-zukuri) roof — a characteristic rarely found in other temple halls of this era.

Architecturally, the Main Hall represents a masterful fusion of styles. All columns are round (enchū), while the exterior bracket complexes employ Zen-style projecting brackets (degumi) with decorative flower-shaped elbow timbers (hana-hijiki) and paired bearing blocks (futatsudo). The front facade is adorned with four kaerumata (frog-leg struts), a quintessentially Japanese decorative element. A wooden veranda encircles the entire building, and the interior features polished plank flooring (nugui-itajiki) that lends an atmosphere of refined simplicity.

Inside the inner sanctuary (naijin), an elaborately railed altar platform (shumidan) supports a single-bay miniature shrine (zushi) in the shikoro-zukuri style with tochi-buki (thin wooden shingle) roofing. This zushi, along with a bearing block (makito) and two ridge-tag documents (munafuda), are jointly designated as appended items to the Important Cultural Property.

Highlights and Things to See

A visit to Koryuji is as much about the journey as the destination. From the parking area near the Miyurugi Bridge — a sacred bridge whose planks bear Sanskrit mantras carved on their undersides — visitors ascend a long stone stairway through dense forest. The approach passes through the Nio Gate (Deva Kings' Gate) and the Chokushi Gate (Imperial Envoy Gate), both designated as municipal cultural properties, before arriving at the main precinct.

The Main Hall stands on an elevated stone-walled terrace alongside the Guest Hall and the striking Three-Story Pagoda, which was built in 1836 and rises 19.6 meters into the forest canopy. Together, these structures convey the grandeur of a major Shingon Buddhist monastery.

The temple's bronze bell (dosho), cast in 1286 during the Kamakura period, is another Important Cultural Property. Standing 112.1 centimeters tall with a mouth diameter of 68.2 centimeters, it is one of the oldest and finest temple bells in Shikoku. Near the entrance to the grounds, visitors will also find the stone hokyoin-to pagoda, traditionally associated with a memorial for Minamoto no Yoritomo and designated as another Important Cultural Property.

Nishiyama Koryuji is affectionately known as the "Maple Temple" (Momiji-dera) for the approximately 300 Japanese maple trees that fill its grounds. The peak autumn foliage season typically runs from late November through early December, drawing photographers and nature lovers from across Japan. Spring also brings beauty, with weeping cherry trees (shidarezakura) and Yoshino cherries lining the roughly one-kilometer approach path from mid-March through mid-April.

Surrounding Area and Nearby Attractions

Saijo City and the surrounding Toyo region offer several worthwhile side trips. Pilgrims following the Shikoku Bekkaku Twenty route may wish to visit Monju-in (No. 9) and Ikiki Jizo (No. 11), both located nearby. The Shikoku Thirty-Six Fudo route connects Koryuji to Manganji (No. 21) and Ishizuchi-san Gokurakuji (No. 23).

For those interested in broader sightseeing, the area provides access to Mount Ishizuchi — the highest peak in western Japan — as well as the Towel Museum of Art in nearby Imabari, a unique facility showcasing the region's renowned towel-manufacturing industry. The historic Dogo Onsen in Matsuyama, one of Japan's oldest hot spring resorts, is approximately one hour away by car.

📍 Plan Your Visit to Ehime
Find tours, activities & transport passes near Koryuji Temple Main Hall
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Q&A

QIs the Main Hall open to visitors year-round?
AYes. Nishiyama Koryuji Temple is open daily from 7:00 AM to 5:00 PM. A voluntary admission donation of 100 yen helps support the maintenance of the grounds. Please note that the interior of the Main Hall may have limited access during special exhibitions or ceremonies.
QWhen is the best time to visit for autumn foliage?
AThe peak autumn color season is typically from late November to early December, though exact timing varies by year. During the Momiji Matsuri (Maple Festival) in November, parking fees may apply (around 300 yen for standard vehicles). Morning visits are recommended for the best light, as the east-facing temple grounds receive less direct sunlight in the afternoon.
QHow do I get to Nishiyama Koryuji Temple?
ABy car, take the Imabari-Komatsu Expressway to the Toyo-Tanbara Interchange, then follow Ehime Prefectural Route 151 for about 20 minutes following signs to the temple. By public transportation, take the JR Yosan Line to Nyugawa Station, from which the temple is approximately 25 minutes by taxi. Free parking is available near the Miyurugi Bridge, except during the autumn festival period.
QIs the temple accessible for visitors with mobility challenges?
AThe approach to the Main Hall involves a long stone stairway through the forest, which can be steep in places. A vehicle road does provide access closer to the main precinct, though it may be closed during the autumn festival period. Comfortable walking shoes are strongly recommended for all visitors.
QAre there English-language signs or guides available at the temple?
ASignage at the temple is primarily in Japanese. While some basic information may be available in English, visitors are encouraged to research the temple's history beforehand or use a translation app. The temple staff are welcoming and helpful, even if communication is limited to Japanese.

Basic Information

Name Koryuji Main Hall (興隆寺本堂)
Temple Name Nishiyama Koryuji (西山興隆寺) — Buppozan Butsuganin
Buddhist Sect Daigo School of Shingon Buddhism (真言宗醍醐派)
Principal Image Senju Kannon (Thousand-Armed Kannon Bodhisattva)
Year Built 1375 (Bunchu 4 / Eiwa 1, Muromachi period)
Designation Important Cultural Property (designated May 27, 1907)
Architectural Style Hip roof (yosemune-zukuri), single story, copper plate roofing; 5 bays × 6 bays
Address 1657 Tambaracho Kota, Saijo, Ehime 791-0505, Japan
Phone 0898-68-7275
Hours 7:00 AM – 5:00 PM (daily)
Admission Voluntary donation of 100 yen
Access 20 min by car from Toyo-Tanbara IC (Imabari-Komatsu Expressway); 25 min by taxi from JR Nyugawa Station
Parking Free (300 yen during autumn Maple Festival)
Pilgrimage Shikoku Bekkaku 20 Pilgrimage No. 10 / Shikoku 36 Fudo No. 22

References

興隆寺本堂 — 文化遺産オンライン
https://bunka.nii.ac.jp/heritages/detail/202309
興隆寺本堂 — 愛媛県庁公式ホームページ
https://www.pref.ehime.jp/ehimenotakara/22.html
西山興隆寺 — Wikipedia
https://ja.wikipedia.org/wiki/西山興隆寺
第十番 西山興隆寺 — 四国別格二十霊場
https://www.bekkaku.com/?page_id=33
西山興隆寺 — ehime.mytabi.net
https://ehime.mytabi.net/nishiyama-koryuji-temple.php
Nishiyama Koryoji Temple — Shikoku Tours
https://www.shikokutours.com/attractions/Ehime-Prefecture/points-of-interest/Nishiyama-Koryoji-Temple
Nishiyama Koryu-ji Temple — Japan Travel by NAVITIME
https://japantravel.navitime.com/en/area/jp/spot/90011-sak1307079/

Last verified: 2026.03.22