Koyasan Okunoin: Japan’s Most Sacred Cemetery & Spiritual Heart of Shingon Buddhism

Introduction

Deep in the mountains of Wakayama Prefecture lies Koyasan (Mount Koya). At the innermost reaches of this sacred site, spread across a mountain basin at approximately 800 meters above sea level, there is a place where Kobo Daishi Kukai is believed to remain in eternal meditation to this day. This place is Okunoin. Stretching approximately 2 kilometers from Ichinohashi Bridge to the Gobyo (mausoleum), the approach path is flanked on both sides by over 200,000 tombstones and memorial towers standing amid centuries-old cedar trees, forming a spiritual landscape unlike anything else in the world.

As you walk along the sunlight-dappled path, cool air gently brushes your skin from between moss-covered stone pagodas, and the only sound that reaches your ears is the rustling of cedar leaves in the wind. Condensed within this space is the weight of faith accumulated over approximately 1,200 years, as people from feudal warlords to commoners have continuously wished to “rest beside Kukai.”

Koyasan Okunoin was registered as a component of the UNESCO World Cultural Heritage Site “Sacred Sites and Pilgrimage Routes in the Kii Mountain Range” in 2004, and is one of Japan’s premier sacred sites, attracting approximately 1.5 million visitors annually from both Japan and abroad. This article provides a comprehensive guide covering Okunoin’s history from Kobo Daishi Kukai’s entering of eternal meditation to the present day, along with must-see highlights, nearby tourist attractions, and detailed access information.

Overview of Koyasan Okunoin

Okunoin is located at the eastern end of Koyasan and is the mountain’s largest sacred precinct, centered on the Gobyo (mausoleum) of Kobo Daishi Kukai. The approximately 2-kilometer path from Ichinohashi Bridge to the Gobyo is known as the “Okunoin Approach” and serves as both Japan’s largest cemetery and one of the country’s most important pilgrimage routes.

*Please check the official Koyasan website for the latest visiting information.

Along the approach path stand numerous graves and memorial towers of feudal warlords including Oda Nobunaga, Toyotomi Hideyoshi, Takeda Shingen, Uesugi Kenshin, and Date Masamune. Regardless of whether they were allies or enemies in life, everyone rests equally beside Kobo Daishi in this sacred ground. This sight has been called “a microcosm of Japanese history,” and for history enthusiasts, exploring each individual tombstone can easily take several hours.

The Gobyo at the innermost part of Okunoin is the place where Kobo Daishi Kukai entered eternal meditation (nyujo) in the year 835 (Jowa 2). According to the teachings of Shingon Esoteric Buddhism, Kukai did not die but rather entered into eternal meditation and continues to pray for the salvation of all sentient beings to this day. This belief in “nyujo” (entering eternal meditation) is the very essence of what makes Koyasan Okunoin the holiest of Japan’s Buddhist sacred sites.

History of Koyasan Okunoin

1. Kobo Daishi Kukai and the Founding of Koyasan (816)

The history of Koyasan Okunoin is inseparable from the life of Kobo Daishi Kukai (774-835). Born in the province of Sanuki (present-day Kagawa Prefecture), Kukai traveled to Tang Dynasty China in 804 as part of a diplomatic mission, where he received the deepest teachings of Esoteric Buddhism from Master Huiguo at Qinglong Temple in Chang’an (present-day Xi’an). Having become the legitimate successor of Esoteric Buddhism in just two years, Kukai searched for an ideal training ground to spread Shingon Esoteric Buddhism after returning to Japan.

In 816 (Konin 7), Kukai received the land of Koyasan from Emperor Saga and was granted permission to establish a Shingon Esoteric Buddhist training center there. He envisioned the mountain basin at approximately 800 meters elevation as an “eight-petaled lotus,” with eight peaks surrounding it like lotus petals, making it the ideal realm for Esoteric Buddhism. According to legend, Kukai chose this location because when he threw a three-pronged vajra (sankosho) from the ship during his return from China, it was found hanging in a pine tree on Mount Koya.

Kukai and his disciples began constructing temple buildings, but the steep mountain paths and harsh climate posed significant obstacles. Transporting materials from the foothills took several days, and winter snow and cold hampered construction. Nevertheless, driven by Kukai’s unwavering determination and his disciples’ devotion, major structures including the Kondo (Main Hall) and Daito (Great Pagoda) were built one after another. For Kukai, Koyasan was a grand project to recreate the “world of the mandala” on earth — a physical manifestation of the Buddha’s realm in the present world.

2. Kukai’s Entering of Eternal Meditation and the Birth of Okunoin Faith (835)

On March 21, 835 (Jowa 2), Kukai entered eternal meditation (nyujo) at Okunoin on Mount Koya. Nyujo means entering into eternal zenjo (a deep state of meditation) and is an entirely different concept from “death” in the teachings of Shingon Esoteric Buddhism. Kukai is believed to continue meditating for 567,000 days (approximately 1,500 years) until the future Buddha Maitreya descends to earth, ceaselessly working for the salvation of all sentient beings.

This belief in nyujo elevated Okunoin to the status of the supreme sacred site in Japanese Buddhism. The faith that Kukai is still alive and continuing his meditation imbues Okunoin with a unique spiritual aura. Every morning at 6:00 AM and 10:30 AM, meals known as “Shojinku” (food offerings for a living master) are carried to the Gobyo. This ritual of serving meals to Kukai has continued without a single day’s interruption for nearly 1,200 years — through the deepest winter snow, typhoons, and even wartime — this ceremony has never once been suspended.

Shortly after Kukai’s entering of eternal meditation, his disciples wished to continue their practice near their master and built hermitages around Okunoin. Before long, the belief of wanting to “rest beside Kukai” spread widely, and aristocrats, warriors, and monks began building graves and memorial towers at Okunoin one after another. This was the beginning of what has grown into the collection of over 200,000 tombstones that exists today.

3. The Medieval Period — Warrior Faith and Koyasan’s Growth

From the late Heian period through the Kamakura period, Koyasan received devout patronage from the imperial family and powerful aristocrats such as the Fujiwara clan. Emperor Shirakawa (retired) made numerous pilgrimages to Koyasan and commissioned the construction of many temple buildings. During this period, memorial towers for members of the imperial family and nobility were built along the Okunoin approach in rapid succession, further elevating the site’s prestige as a sacred place.

During the Sengoku (Warring States) period, Okunoin grew even more important as an object of faith for military commanders. It is remarkable that warlords who fought against each other for control of Japan — including Takeda Shingen, Uesugi Kenshin, Oda Nobunaga, Toyotomi Hideyoshi, and Date Masamune — all have graves at Okunoin regardless of which side they fought on. Mortal enemies who crossed swords in life now rest side by side under the care of Kobo Daishi in death — this scene speaks to Okunoin’s nature as a “realm of equality that transcends life and death.”

Particularly noteworthy is the relationship between Toyotomi Hideyoshi and Koyasan. In 1585 (Tensho 13), Hideyoshi prepared to attack Koyasan during his conquest of Kishu, but the mountain was spared destruction through diplomatic negotiations. Afterward, Hideyoshi completely reversed his stance and built Seigan-ji Temple (the predecessor of present-day Kongobu-ji) on Koyasan to honor his deceased mother. Hideyoshi’s grave at Okunoin was also constructed during this period.

4. The Early Modern Period — The Rise of Commoner Pilgrimages and the Meiji-Era Ordeal

With the beginning of the Edo period, Koyasan entered a period of stability under the protection of the shogunate. The Tokugawa family revered Koyasan for generations, and the magnificent Tokugawa Family Mausoleum was built near the entrance to the Okunoin approach. This mausoleum, enshrining the first shogun Ieyasu and the second shogun Hidetada, features decorations rivaling those of Toshogu Shrine and is preserved today as an Important Cultural Property.

From the mid-Edo period onward, “Koya-mode” (pilgrimages to Koyasan) spread among the common people. Driven by the aspiration to “visit Koyasan at least once” combined with a broader travel boom, the number of commoner pilgrims surged. The temple lodgings (shukubo) along the approach bustled with visitors, and Okunoin functioned as a sacred site where anyone could worship regardless of social status or wealth.

However, the Meiji Restoration brought severe trials to Koyasan. The Shinbutsu Bunri (Separation of Shinto and Buddhism) edict of 1868 and the subsequent Haibutsu Kishaku (anti-Buddhist movement) devastated Buddhist temples across Japan. Koyasan was no exception, with some buildings demolished and temple lands confiscated. Yet the Gobyo at Okunoin and the tombstones along the approach escaped destruction, and the 1,200-year history was never broken. The strength of faith in Kobo Daishi carried Koyasan through the storm.

5. The Modern Era — World Heritage Registration and Becoming an International Sacred Site

In the 20th century, Koyasan regained its vitality. In 1925, the Nankai Electric Railway’s Koya Line was extended to Koyashimo Station, and in 1930, a cable car began operating from Gokurakubashi Station. These developments made day trips from Osaka possible and dramatically increased the number of visitors to Koyasan.

In July 2004, Koyasan was registered as a UNESCO World Cultural Heritage Site as a component of the “Sacred Sites and Pilgrimage Routes in the Kii Mountain Range.” Registered alongside Kumano Sanzan and Yoshino-Omine, this heritage designation brought worldwide recognition to the value of Japan’s mountain worship and pilgrimage culture. After the World Heritage registration, the number of foreign tourists visiting Koyasan surged, and today approximately 300,000 international visitors come each year.

The Okunoin night tour is particularly popular among foreign travelers. On this tour, participants walk through the approach after dark with a monk guide, relying only on the light of approximately 20,000 lanterns as they weave through moss-covered tombstones. An otherworldly, ethereal atmosphere completely different from the daytime unfolds, creating a truly unforgettable experience for those seeking “Spiritual Japan.” During the “1200th Anniversary Grand Ceremony of the Founding of Koyasan” in 2015, approximately 2 million people made pilgrimages, proving that faith in Kobo Daishi has not waned even after 1,200 years.

Highlights & Recommended Spots

Here are the must-see spots when visiting Koyasan Okunoin.

1. The Approach from Ichinohashi Bridge to Gobyobashi Bridge — Walking Through a Corridor of History

The formal pilgrimage to Okunoin begins at “Ichinohashi Bridge” (First Bridge). Crossing this bridge is said to mark entry into sacred ground, and the proper etiquette is to bow before crossing. The approximately 2-kilometer approach from Ichinohashi Bridge to Gobyobashi Bridge features a breathtaking landscape of around 680 towering cedar trees, aged 200 to over 600 years, with more than 200,000 tombstones and memorial towers at their feet.

The approach is divided into three sections — upper, middle, and lower — each with distinct characteristics from different historical periods. Near Ichinohashi Bridge, ancient memorial towers associated with the Oshu Fujiwara clan and the Kamakura Shogunate stand in rows, while the middle section has a concentration of Sengoku-era warlord graves. Oda Nobunaga’s memorial tower is surprisingly modest, almost too humble to evoke the glory of a ruler who nearly unified Japan. In contrast, the Toyotomi family’s burial site reflects the grandiose style characteristic of Hideyoshi, making the comparison between the two particularly fascinating.

One thing to pay special attention to while walking the approach is the remarkable diversity in shape and size of the tombstones. From massive five-ring towers (gorinto) several meters tall to tiny Jizo statues half-buried in moss, an extraordinary variety of memorial structures coexist. Built with the single-minded desire to be “near Kobo Daishi” regardless of era, social rank, or sect, these tombstones testify to the profound depth of Japanese faith. The approach is especially mystical in early morning, when the cedars emerge through the mist in a scene that feels as though you are standing at the boundary between this world and the next.

2. The Gobyo & Torodo Hall — The Holiest Ground Where Kobo Daishi Kukai Rests

Once you cross Gobyobashi Bridge, you enter the most sacred area where photography is prohibited. Proper etiquette calls for placing your palms together and bowing before crossing the bridge. Beyond this point, visitors are expected to remove their hats and refrain from eating or drinking. The clear waters of the Tamagawa River flowing beneath the bridge were once used by pilgrims for ritual purification, and the row of stone lanterns reflected on the water’s surface creates an ethereal atmosphere.

The “Torodo” (Lantern Hall), located just before the Gobyo, is a magnificent space packed with approximately 20,000 lanterns. Among them are two “eternal flames” said to have been burning continuously for over 1,000 years. One is the “Kishin Lantern” donated by the monk Kishin Shonin, and the other is the “Shirakawa Lantern” donated by Retired Emperor Shirakawa. The sight of countless lantern flames flickering in the dimly lit hall is so solemn that it defies description, and many visitors instinctively press their palms together in prayer.

Beneath the Torodo Hall is the “Underground Sanctuary” (Chika Hojo), where visitors can offer prayers to Kobo Daishi from a position directly below the Gobyo. As you descend underground, the air turns noticeably cool, and a stillness distinctly different from above pervades the space. Sitting before the countless small Buddha statues lining the walls with your eyes closed, you may feel an inexplicable sense of being enveloped by the presence of Kukai, who is said to have been meditating in this very place for 1,200 years.

3. Touring the Graves of Feudal Warlords — A Sacred Place of Equality Where Enemies Rest Together

Among all the attractions along the Okunoin approach, the tour of feudal warlord graves is by far the most popular. The sight of memorial towers honoring commanders who shaped Japanese history lining both sides of the path has an impact like seeing “a history textbook brought to life in three dimensions.”

The graves of Takeda Shingen and Uesugi Kenshin are positioned nearly facing each other across the approach path. These destined rivals, who fought five fierce battles at Kawanakajima during their lifetimes, now rest side by side under the care of Kobo Daishi. Takeda Shingen’s grave features a rustic design of stacked natural stones, evoking the image of a no-nonsense, disciplined warrior. Meanwhile, Uesugi Kenshin’s grave has an elegant, refined appearance befitting the warrior known as the “Lord of Righteousness,” famous for his “Bi” (Bishamonten) battle banner.

Date Masamune’s burial site boasts the most impressive scale along the approach. The sight of a five-ring tower installed atop stone walls within a spacious plot reflects the dignified, commanding life of the “One-Eyed Dragon.” Akechi Mitsuhide’s memorial tower stands quietly in a spot slightly removed from the main path, evoking the extraordinary fate of the man behind the “Incident at Honno-ji.” The proximity of Oda Nobunaga’s memorial tower to Toyotomi Hideyoshi’s grave is another irony of history that captures visitors’ attention. For those interested in the history of the samurai, this is an irresistible destination.

4. Mizumuke Jizo — A Serene Place to Pray for the Departed

The “Mizumuke Jizo” (Water-Offering Jizo), located just before Gobyobashi Bridge, is a beautiful row of Jizo Bodhisattva statues standing along the banks of the Tamagawa River. Here, visitors write the posthumous Buddhist name or secular name of a deceased loved one on a “mizutoba” (water memorial tablet) and float it on the clear waters of the Tamagawa to pray for their repose. Water memorial tablets are available for 200 yen each at the offering station, and anyone can perform this memorial service.

Over a dozen Jizo Bodhisattva statues stand in a row, each wearing a gentle expression. The stone figures draped in moss and fallen leaves are the very picture of wabi-sabi elegance, and the clear sound of the Tamagawa flowing before them heightens the profound silence of the setting. During the autumn foliage season in particular, red and gold fallen leaves float on the water’s surface, creating a scene as beautiful as a painting alongside the Jizo statues.

The Mizumuke Jizo area is a spot that all pilgrims heading to the Gobyo must pass through, yet it is often overlooked by those in a hurry. Taking a moment to pause here, dipping your hands in the clear stream, and quietly reflecting on departed loved ones is an important part of the Okunoin pilgrimage experience. This is a place where you can experience firsthand the purifying power of water in Japanese Buddhism, and there is deep meaning in the practice of cleansing one’s heart before proceeding to the Gobyo.

5. Corporate Memorial Towers — Modern Expressions of Faith

Along the Okunoin approach, you will find not only tombstones of feudal warlords and historical figures, but also numerous memorial towers erected by modern corporations. This is a uniquely Okunoin sight and a fascinating example of the fusion between Japanese corporate culture and religious faith.

Perhaps the most famous is UCC Ueshima Coffee’s “coffee cup-shaped” memorial tower. This stone tower modeled after a life-sized coffee cup elicits surprise and smiles from first-time visitors. It was built to memorialize those who died in the coffee-bean producing regions. Also along the approach are Nissan Motor’s “engine-shaped” memorial tower, Yakult’s “Yakult bottle-shaped” memorial tower, a termite memorial tower, a rocket-shaped memorial tower, and many others.

These corporate memorial towers might at first seem out of place in a sacred site. However, according to Kobo Daishi’s teaching to “mourn all life equally,” memorializing all life connected to corporate activities — animals, plants, and even the “life” of objects — is not inconsistent with the worldview of Shingon Esoteric Buddhism. The fact that people from ancient warlords to modern corporations continue to seek a place of memorial at Okunoin across the ages symbolizes the profound depth of this sacred site’s embrace. Approximately 400 companies have erected memorial towers here, testament that faith in Kobo Daishi remains alive and well in modern society.

Nearby Attractions

1. Danjo Garan — Koyasan’s Other Sacred Precinct

Alongside Okunoin, the other great sacred precinct of Koyasan is “Danjo Garan.” Located approximately 30 minutes on foot (about 10 minutes by bus) from Okunoin, this is the place where Kobo Daishi Kukai first began constructing temple buildings. The “Konpon Daito” (Great Fundamental Pagoda), standing approximately 48.5 meters tall, is the symbol of Koyasan, and its vermilion multi-story pagoda is strikingly beautiful against the surrounding greenery.

The Danjo Garan complex contains about 20 halls and pagodas including the Kondo (Main Hall), Konpon Daito, Mie-do (Portrait Hall), and Fudo-do (designated a National Treasure), recreating the mandala world of Shingon Esoteric Buddhism on earth. Inside the Konpon Daito, a three-dimensional mandala centered on the Dainichi Nyorai (Cosmic Buddha) of the Womb Realm is enshrined, and stepping inside reveals a solemn space that feels like being enveloped in the Buddha’s world. While Okunoin is “the place where Kukai rests,” Danjo Garan is “the place where Kukai gave physical form to his teachings,” and visiting both provides a complete understanding of Koyasan.

The “Sanko no Matsu” (Three-Pronged Pine) at Danjo Garan is another not-to-miss spot. This is said to be the pine tree where the three-pronged vajra Kukai threw from China was found. It is a rare three-needled pine whose needles divide into three instead of the usual two. There is a folk belief that picking up one of these pine needles and placing it in your wallet will ensure you never lack for money, and visitors can often be seen carefully searching the ground.

2. Kongobu-ji Temple — Head Temple of Shingon Buddhism

Kongobu-ji Temple, located about 15 minutes by bus from Okunoin, is the head temple of Koyasan Shingon Buddhism and an essential stop on any visit to Koyasan. The current main hall was rebuilt in 1863 (Bunkyu 3) and is an imposing structure notable for its grand cypress bark roof.

The highlights of Kongobu-ji are its many fusuma (sliding door) paintings by artists of the Kano school. The paintings in the “Willow and Heron” room and the “Plum Room” are celebrated masterpieces of Japanese art, drawing visitors into a world of delicate Japanese painting within the dignified shoin-style architectural space. The temple also features Japan’s largest rock garden, “Banryutei,” spanning 2,340 square meters, which uses white sand and blue stones to depict male and female dragons facing each other amid a sea of clouds. This rock garden was created in 1984 to commemorate the 1,150th anniversary of Kobo Daishi’s entering of eternal meditation.

Kongobu-ji also offers temple lodging experiences, where guests can catch a glimpse of monastic life while enjoying shojin ryori (Buddhist vegetarian cuisine) and participating in morning prayer services. There are 52 temple lodgings throughout Koyasan, each offering distinctive vegetarian cuisine and gardens. Staying overnight and experiencing Okunoin’s nighttime pilgrimage makes for the most fulfilling Koyasan experience.

3. Koyasan Reihokan Museum — A Collection of National Treasure-Class Buddhist Art

The “Koyasan Reihokan Museum,” located near the Danjo Garan complex and about 15 minutes by bus from Okunoin, is a museum that houses and displays Buddhist art treasures handed down at Koyasan. With a collection of approximately 100,000 items including 21 National Treasures and 148 Important Cultural Properties, it boasts a quality and quantity that rank among the finest of Japan’s Buddhist art museums.

One must-see exhibit is the National Treasure “Eight Great Attendant Statues” (Hachidai Doji Ritsuzo), attributed to the master sculptor Unkei. These eight attendant figures of Fudo Myoo each possess different expressions and poses, and are considered the pinnacle of realistic Buddhist sculpture from the Kamakura period. Another highlight is the National Treasure “Painting of the Buddha’s Parinirvana” (Butsu Nehanzu), a Heian-period masterpiece depicting the scene of Shakyamuni’s passing on a large canvas approximately 2.7 meters tall and 1.9 meters wide.

Admission to the Reihokan Museum is 1,300 yen for adults, and it offers yet another perspective on Koyasan’s cultural value, different from Okunoin or Danjo Garan. A treasure house of Japanese Buddhist art on par with Todai-ji Temple and Horyu-ji Temple, it is especially recommended for those interested in art and history. The exhibits rotate regularly, so there are always new discoveries no matter how many times you visit.

How to Get There

By Train

The most convenient way to reach Koyasan is via the Nankai Electric Railway. From Osaka Namba Station, take the Nankai Koya Line limited express “Koya” to the terminus at Gokurakubashi Station (approximately 1 hour 30 minutes). From Gokurakubashi Station, take the Nankai Koyasan Cable Car to Koyasan Station (approximately 5 minutes). From Koyasan Station, transfer to a Nankai Rinkan Bus and ride to the “Okunoin-guchi” bus stop (approximately 15 minutes, for those starting from Ichinohashi Bridge) or the “Okunoin-mae” bus stop (approximately 20 minutes, for those starting from Nakanohashi Bridge).

From Tokyo, take the Shinkansen to Shin-Osaka Station (approximately 2 hours 30 minutes), then the Osaka Metro Midosuji Line from Shin-Osaka to Namba Station (approximately 15 minutes), and then the Nankai limited express from Namba to Gokurakubashi (approximately 1 hour 30 minutes). The total travel time is approximately 4 hours 30 minutes. From Kyoto, the convenient route is to take the Kintetsu limited express to Osaka Namba (approximately 35 minutes), then transfer to the Nankai limited express.

By Bus

The Nankai Rinkan Bus is essential for getting around within Koyasan. Buses run from Koyasan Station to major spots including Danjo Garan, Kongobu-ji-mae, Okunoin-guchi, and Okunoin-mae. The “Koyasan World Heritage Ticket” (2,860 yen for adults from Osaka) is a great value as it includes round-trip Nankai train fare and unlimited bus rides.

By Car

If driving, take the Hanwa Expressway from the Kishiwada-Izumi IC and follow National Route 480 for approximately 1 hour 30 minutes. There are several parking lots within Koyasan, and the closest to Okunoin is the “Nakanohashi Parking Lot” (free, approximately 100 spaces). However, during the autumn foliage season and Golden Week, parking lots become extremely crowded, so arriving early in the morning is recommended. The mountain road to Koyasan is winding and narrow, so those who are not confident drivers should consider using the train and cable car.

Recommended Access Method

The most recommended route is using the Nankai Electric Railway and cable car. From the cable car windows as it climbs the steep mountain, you can enjoy panoramic views of Koyasan’s deep mountain forests, building anticipation for the sacred site ahead. For more details on transportation in Japan, please see our related article. Koyasan has so many attractions that one day is not enough to see them all, so the ideal plan is to stay overnight at a temple lodging and experience Okunoin’s early morning or nighttime pilgrimage.

Conclusion

Koyasan Okunoin is the supreme sacred site of Japanese Buddhism, having continuously attracted the faith of people who wish to “rest beside the living saint” ever since Kobo Daishi Kukai entered eternal meditation approximately 1,200 years ago. The approach path lined with over 200,000 tombstones, the “eternal flames” in the Torodo Hall that have been burning for over 1,000 years, the meals delivered to Kukai every morning — all of these are testimony to the enduring belief that “Kukai is still alive.”

From touring the graves of feudal warlords, to quiet prayer at the Gobyo, to the corporate memorial towers that represent modern expressions of faith, Okunoin offers new discoveries with every visit. Registered as a World Heritage Site, this sacred ground is a place where you can connect with the deepest spirituality of Japanese culture.

For those who wish to explore Koyasan further, we recommend our articles on Kongobu-ji Temple, as well as fellow World Heritage Sites Kumano Sanzan and Enryaku-ji Temple on Mount Hiei. The world of Japan’s mountain worship will come into even sharper focus.

Frequently Asked Questions