Discovering the Golden Legacy of Miyajidake Kofun

In the heart of Fukutsu City, Fukuoka Prefecture, lies one of Japan's most spectacular archaeological discoveries - the Miyajidake Kofun. This 7th-century burial mound has earned the nickname "Underground Shosoin" for its extraordinary collection of golden artifacts that rival the treasures of Nara's famous Shosoin Repository. With over 300 precious items unearthed from its massive stone chamber, including more than 20 designated National Treasures, this ancient tomb offers visitors a unique glimpse into the wealth and power of ancient Japan's maritime rulers.

The Magnificent Artifacts - Why They Became National Treasures

The artifacts from Miyajidake Kofun represent the pinnacle of 7th-century Japanese craftsmanship and continental cultural exchange. The collection was designated as National Treasures in 1952 due to their exceptional artistic quality, historical significance, and remarkable preservation.

Among the most spectacular finds is the gilt-bronze horse equipment, featuring intricate decorative patterns created through thin relief carving. The stirrups (tsubo-abumi) decorated with honeysuckle patterns display an unparalleled elegance of form that showcases the sophisticated metalworking techniques of the period.

The crown jewel of the collection is the massive ceremonial sword (Kabutsuchi-no-tachi), estimated to measure between 2.4 to 2.8 meters in total length - one of the largest ancient swords ever discovered in Japan. This gigantic blade symbolized the immense power and authority of the tomb's occupant.

Perhaps most impressive is the gilt-bronze crown featuring openwork decoration with dragons arranged among flowing cloud patterns, demonstrating exquisite craftsmanship. The crown originally had pendants (hoyo) hanging from it, adding to its majestic appearance.

The Stone Chamber - Japan's Second Largest

The Miyajidake Kofun features a horizontal stone chamber (yokoana-shiki sekishitsu) measuring approximately 23.5 meters in length, making it the second-longest in Japan. Only the Gojo-no-Maruyama Kofun in Nara surpasses it, though that tomb is restricted as an Imperial burial site, making Miyajidake the longest accessible stone chamber in the country.

The chamber's massive scale - 5 meters in both height and width - was constructed using enormous stone blocks, demonstrating the considerable resources and engineering skills available to the local rulers. This monumental architecture reflects the power of the Munakata clan, who controlled the vital maritime routes between Japan and the Asian continent.

The Path of Light Phenomenon

While the ancient treasures draw archaeology enthusiasts, Miyajidake Shrine has gained modern fame for its spectacular "Path of Light" (Hikari no Michi) phenomenon. Twice yearly, around February 20th and October 20th, the setting sun aligns perfectly with the shrine's approach path, creating a golden corridor of light that extends straight from the shrine steps to the Genkai Sea.

This mystical sight gained nationwide attention when it was featured in a Japan Airlines commercial with the popular group Arashi. During Path of Light weeks, thousands of visitors gather to witness this natural spectacle, with special sunset festivals held to commemorate these occasions. Free numbered tickets for prime viewing spots are distributed from 2 PM on viewing days, though special prayer seats can be reserved in advance.

Visiting the Treasures and Sacred Site

The National Treasure artifacts from Miyajidake Kofun are primarily housed at the Kyushu National Museum in Dazaifu, where they are displayed on a rotating basis. The museum offers detailed explanations in multiple languages, allowing international visitors to fully appreciate these masterpieces of ancient Japanese art.

At Miyajidake Shrine itself, visitors can explore the actual kofun site, though the stone chamber interior is generally restricted except during special festival periods. The shrine features its own "Three Best in Japan" - the massive 2.6-meter diameter sacred rope (shimenawa), a giant bronze bell, and an enormous taiko drum.

The shrine grounds also include the Okunomiya Hassha, eight subsidiary shrines that visitors can tour for various blessings. According to tradition, visiting all eight shrines will help fulfill one's greatest wishes.

Access and Practical Information

Miyajidake Shrine is located approximately 2 kilometers from JR Fukuma Station on the Kagoshima Main Line. Visitors can reach the shrine by a 25-minute walk, a 5-minute taxi ride, or via Nishitetsu bus (alight at "Miyajidake Jinja-mae" stop). The shrine is open daily from sunrise to sunset, with no admission fee for general visits.

For those wishing to see the National Treasure artifacts, the Kyushu National Museum in Dazaifu is accessible via Nishitetsu train from Fukuoka. The museum is open Tuesday through Sunday, 9:30 AM to 5:00 PM (closed Mondays except national holidays).

The best times to visit are during the Path of Light periods in late February and late October, though the shrine offers beautiful seasonal flowers throughout the year, including cherry blossoms in spring, irises in early summer, and autumn foliage.

Surrounding Attractions

The Fukutsu area offers several complementary attractions for visitors interested in ancient Japanese history. The nearby Shingu Coast features the Ainoshima Island visible from the shrine, which played an important role in ancient maritime trade routes.

The Tsuyazaki Kofun Cluster, of which Miyajidake is part, includes several other significant burial mounds that can be explored via walking trails. The Tebika Namikirifudo Kofun, another important tomb with similar stone chamber construction, offers additional insights into the region's ancient burial practices.

For a unique photo opportunity, visit Fukutsu Sea Mirror at low tide, when the shallow water creates perfect reflections of the sky. This phenomenon occurs along the 3-kilometer Miyajihama Beach between Tsuyazaki and Fukuma.

The shrine also features a traditional village area with relocated Edo-period buildings, offering glimpses into historical Japanese rural life. These preserved structures provide an atmospheric contrast to the ancient tombs and sacred spaces.