Cave Kannon
A Man-Made Cave Created Over Half a Century
Cave Kannon was created by Yamada Tokuzō (1885–1964), a successful kimono and textile merchant from Takasaki who invested his own fortune in the project.
Construction began in 1919, and Yamada continued working on the project for approximately 50 years, until the year of his death in 1964. At a time when modern construction machinery was not available, the enormous underground space was excavated largely by hand using pickaxes and shovels.
Workers dug into the hillside, filled valleys, created ponds, and transported large stones into the grounds. The scale of the undertaking is remarkable, particularly considering the technology available at the time.
The cave passage extends for approximately 400 meters, although the original plan called for a length of 800 meters. Inside, lava from Mount Asama and distinctive Sanbaishi stone from Gunma are skillfully arranged to create an imagined Buddhist paradise.
Although it is not a natural limestone cave, the carefully constructed underground environment evokes the atmosphere of deep mountain valleys, waterfalls, and mountain streams. The result is a dramatic space unlike an ordinary Buddhist temple or museum.
39 Kannon Statues in a Unique Underground Setting
One of the most remarkable features of Cave Kannon is its collection of 39 stone statues of Kannon, carved from granite by the master sculptor Takahashi Rakuzan.
The statues include various forms of Kannon, such as Yōryū Kannon, Ryūtō Kannon, Byakue Kannon, and Senju Kannon. Many are associated with the traditional group of Thirty-Three Forms of Kannon or the Six Forms of Kannon, and each statue is positioned within an environment designed to complement its character and origin.
Some of the statues reportedly took as long as a year to complete. The graceful folds of their robes, balanced proportions, and carefully carved expressions demonstrate an exceptional level of craftsmanship and make the works important examples of modern Buddhist sculpture.
Rather than simply depicting Kannon in a painting or sculpture, Cave Kannon attempts to transform the entire world of Kannon into a three-dimensional environment. Deep inside the cave, visitors encounter a particularly impressive chamber reaching approximately 20 meters in height, where even the smallest details of the lava-inspired decorations were carefully shaped.
A Chapter of Wartime History
During the Pacific War, the cave was also considered for use as an air-raid shelter. Facilities including a water reservoir, well, storage areas, and a power-generation room were prepared.
The site was reportedly rented by the Kumagaya Army Regiment for use as a storage facility, and historical records describe it as an exemplary privately constructed air-raid shelter.
Part of these wartime facilities can still be viewed today, adding another layer of historical significance to the underground complex.
A Cool and Quiet Place Even in Summer
The temperature inside Cave Kannon remains at approximately 17°C throughout the year, providing a naturally cool environment even during the hot Japanese summer.
The combination of cool air, dim lighting, stone surfaces, and rows of quietly standing Kannon statues creates a solemn and contemplative atmosphere. Visiting the cave in summer is particularly refreshing, and walking slowly through the underground passage offers a peaceful opportunity for reflection.
Tokumeien Japanese Garden
One of Northern Kanto’s Notable Japanese Gardens
Tokumeien is an approximately 6,000-tsubo Japanese strolling garden, created using soil excavated during the construction of Cave Kannon. The garden was developed by Yamada Tokuzō and architect Kaneko Seikichi, with landscaping by the second Gotō Sekisui, who was also involved in the garden of Meiji Shrine in Tokyo.
The garden is centered around a pond known as Urashima Pond and contains several different styles of Japanese garden, including dry landscape gardens, stone gardens, and moss gardens.
Large Sanbaishi rocks, lava from Mount Asama, naturally growing red and black pine trees, and seasonal foliage create a richly textured landscape.
In spring, cherry blossoms and azaleas add color to the garden. Hydrangeas appear in early summer, while autumn brings brilliant foliage. Winter offers a quieter landscape, sometimes covered in snow. The autumn foliage illuminated at night is especially atmospheric and is one of the garden’s highlights.
Stone sculptures by Rakuzan are also placed throughout the garden. Among the playful works are a statue of Urashima Tarō in the center of the pond and a Kannon statue overlooking a waterfall, adding an element of imagination to the traditional garden landscape.
Yamatoku Memorial Museum
Discover the Life of the Founder
Located in the central part of Tokumeien, the Yamatoku Memorial Museum occupies the former residence where Yamada Tokuzō spent his later years.
The complex includes a Western-style building influenced by the Taisho Romantic style, a traditional Japanese house, and an underground air-raid shelter. The buildings have been designated as Takasaki City Landscape Structures.
The museum displays documents relating to Tokuzō’s business activities, handwritten letters, and other materials associated with his life. It also houses and displays works by Kitazawa Rakuten, an important pioneer of modern Japanese manga who became known for works including Norakuro.
Rakuten was a close acquaintance of Yamada Tokuzō and is said to have given the garden the name Tokumeien.
One of the most enjoyable experiences is looking out over the garden from the veranda of the residence. The view allows visitors to appreciate the landscape from almost the same perspective that Tokuzō himself once enjoyed.
Part of the underground air-raid shelter can also be visited, providing a tangible connection with the area’s wartime history.
The Gardens of Yamatoku Park
Seasonal Beauty Throughout the Year
Yamatoku Park changes dramatically with the seasons. Spring brings cherry blossoms and fresh green foliage, while summer offers deep greenery and the refreshing sight and sound of water. Autumn transforms the garden with brilliant red and gold leaves, and winter creates a serene landscape of clear air and quiet surroundings.
During the autumn foliage season, the colorful trees are beautifully reflected on the surface of the ponds, creating some of the garden’s most picturesque scenes.
A Peaceful Place for a Leisurely Walk
The grounds generally have a calm atmosphere, allowing visitors to explore at a relaxed pace. Despite being a sightseeing attraction, the site can provide a peaceful escape from the busier parts of the city.
The combination of underground Buddhist art, traditional gardens, historic buildings, and seasonal nature makes it an especially rewarding destination for travelers who enjoy quieter cultural experiences.
Where Culture and Art Come Together
An art museum is also located within the grounds, displaying works of art as part of the overall cultural experience.
By visiting the museum together with Cave Kannon, Tokumeien, and the historic buildings, travelers can experience several aspects of Japanese culture in one setting.
The defining character of Yamatoku Park lies in the way faith, sculpture, architecture, garden design, and history are brought together within a single landscape.
A Unique Cultural Site Inspired by Buddhist Faith
Cave Kannon and Tokumeien are not operated as a religious corporation. Instead, the site was established as a cultural and sightseeing pilgrimage destination inspired by devotion to Kannon.
Yamada Tokuzō devoted his own fortune to creating this enormous work of art, guided by the philosophy of “not keeping one’s wealth for oneself.” The result is an unusual cultural landscape in which spiritual devotion and artistic expression are inseparably connected.
The site has been managed since 1963 by a general incorporated foundation, formerly known as the Foundation for the Maintenance of Cave Kannon Yamatoku Park.
For a fuller exploration of the Kannon-yama area, Cave Kannon and Yamatoku Park can be combined with nearby Kannon-yama Park and the famous Takasaki Byakue Dai-Kannon. Together, these attractions offer a deeper look at the area’s natural scenery, Buddhist culture, and artistic heritage.
Access and Visiting Tips
Yamatoku Park is located close to central Takasaki and can be reached by both public transportation and car. It takes approximately 15 minutes by car from Takasaki Station.
Because the interior of Cave Kannon is relatively dark and the ground may be uneven in places, comfortable walking shoes are recommended.
With its underground world of Buddhist sculpture, tranquil Japanese garden, historic residence, and seasonal scenery, Cave Kannon and Yamatoku Park is one of Takasaki’s distinctive cultural attractions.
For travelers looking for a quieter experience away from the city’s main sightseeing areas, this unique destination offers an opportunity to encounter Japanese history, art, faith, and garden culture in an atmospheric setting.