Shimizu Shrine

Introduction

Nestled on the lush slopes of Teshima Island in the Seto Inland Sea, the Shimizu Shrine Hall (清水神社社殿) stands as a quiet testament to the deep bond between this island community and its most precious natural resource — pure spring water. Built in 1913 during the early Taishō era, this modest yet finely crafted wooden shrine is part of a sacred ensemble that includes the Karato-no-Shimizu communal spring and the Shimizu Kannon-dō (Buddhist hall), all three of which were designated as Registered Tangible Cultural Properties by the Agency for Cultural Affairs in 2001.

Teshima, whose name literally means "Abundant Island," has long been known for its rich natural environment. At the heart of the Karato district, a spring of remarkably pure water has flowed ceaselessly for centuries — a lifeline that nurtured the island's first settlement and continues to sustain its terraced rice paddies to this day. The Shimizu Shrine watches over this sacred water source, embodying the spiritual reverence that island residents have held for the natural gifts of their land.

Historical Background

The spring at Karato has been central to life on Teshima since the earliest days of human settlement on the island. Local tradition holds that the great Buddhist monk Kūkai (Kōbō Daishi), who traveled extensively through Shikoku in the early ninth century, stopped at this spot when overcome by thirst and struck the ground to reveal the gushing spring. This legend earned the water the poetic name "Reisen Koshimizu" (霊泉越水), or "Sacred Spring of Overflowing Water."

The current shrine building was constructed in 1913 (Taishō 2), as confirmed by an ink inscription found on one of the roof beams. The shrine, also known locally as Kōjin-gū (荒神宮), enshrines a deity associated with hearth and fire, serving as a guardian of the community's daily life and livelihood. In 1929, a local businessman named Nakano Kisaburō, who had made his fortune in the stone masonry industry, donated a large sum to construct the terraced granite washing basins that stand adjacent to the shrine, creating the communal water facility that became the social heart of the Karato neighborhood.

On October 12, 2001, three structures at this site — the Shimizu Shrine Hall, the Shimizu Kannon-dō, and the Karato-oka Communal Water Facility — were together registered as national Tangible Cultural Properties, recognizing the ensemble's architectural, historical, and cultural significance.

Why It Was Designated a Cultural Property

The Shimizu Shrine Hall was registered as a Tangible Cultural Property for several compelling reasons. First, it is a well-preserved example of early Taishō-era shrine architecture on a remote Seto Inland Sea island, documenting the construction techniques and aesthetic sensibilities of rural religious buildings from this period. The shrine's irimoya-style (hipped-and-gabled) tile roof at the front, cedar-board exterior cladding, and stone masonry foundation represent a harmonious blend of traditional craftsmanship adapted to the island environment.

Second, and perhaps more importantly, the shrine cannot be understood in isolation. Together with the Shimizu Kannon-dō and the communal water facility, it forms an integrated cultural landscape that illustrates the intimate relationship between Shinto and Buddhist worship, communal water use, and daily island life. The trio of registered properties tells the story of how a natural spring shaped an entire community — its religious practices, social customs, and agricultural livelihood — over the course of centuries.

The ink inscription on the roof beam precisely dating the building to 1913 adds documentary value, making the structure an important reference point for understanding the chronology of shrine construction in the Shōdoshima and Teshima island group.

Architectural Highlights

The Shimizu Shrine Hall is a compact wooden structure with a total building area of approximately 15 square meters. It sits atop a stone foundation on the upper level of a stairway to the west of the communal water facility, commanding a slightly elevated position that enhances its visual and spiritual presence within the site.

The building measures four meters across the beam span (harima) and three meters along the ridge direction (ketayuki). The front portion features an irimoya (hipped-and-gabled) roof covered with traditional hon-gawara (full-format) ceramic tiles, giving the structure a dignified appearance despite its modest size. The exterior walls are clad in sugi (Japanese cedar) boards, which have weathered over the decades to a rich, warm patina that blends naturally with the surrounding forest.

At the rear of the building, a ritual altar platform approximately one meter wide extends outward, constructed from stacked flat stones. This altar serves as the sacred core of the shrine, where offerings and prayers are directed. The overall composition — stone base, wooden hall, and stone altar — creates a vertical progression from the earthly to the spiritual that is characteristic of traditional Japanese shrine design.

The Sacred Spring and Communal Water Facility

The Shimizu Shrine is inseparable from the spring it guards. The Karato-no-Shimizu spring emerges at the geological boundary where the Tonoshō formation of tuff and tuffaceous conglomerate meets the granite bedrock of Mount Dan (Danyama, approximately 340 meters). The spring produces between 50 and 130 cubic meters of water per day, maintaining a remarkably constant temperature of 13 to 14 degrees Celsius throughout the year.

The terraced communal washing facility, built in 1929, measures roughly ten meters long, five meters wide, and two meters high. Constructed entirely of locally quarried granite, it channels the spring water downward through a series of basins, each designated for a specific purpose — the uppermost for drinking water, the middle basins for rinsing vegetables, and the lower ones for laundry. Before piped water arrived on the island around 1963, these basins served as the primary gathering place for women of the community, functioning as both a practical utility and a lively social forum.

The spring was recognized as one of "Sanuki's Famous Waters" in 1993 and selected as one of the "50 Water Environments to Preserve in Kagawa" in 2001, the same year the shrine and its companion structures received their cultural property designations.

Visitor Information

Teshima is accessible by ferry from Takamatsu Port (approximately 35 minutes to Ieura Port) or from Tonosho Port on Shodoshima (approximately 30 minutes to Karato Port). The Shimizu Shrine and communal spring are located in the Karato-oka district, within walking distance of Karato Port. The site is freely accessible at all times and there is no admission fee.

Visitors are encouraged to approach the shrine and water facility with respect, as both remain active places of worship and community use. The spring water continues to flow into the local water supply system, and residents still maintain the site through regular community cleaning activities. The surrounding sacred grove of evergreen broadleaf trees, including chinquapin (Castanopsis) and oak (Quercus), adds to the serene atmosphere and is worth appreciating as part of the overall experience.

Teshima is best explored by rental bicycle or the island shuttle bus. Comfortable walking shoes are recommended, as the terrain around the shrine includes stone steps and hillside paths.

Surrounding Attractions

Teshima has become one of the most celebrated art islands in the Seto Inland Sea, making it easy to combine a visit to the Shimizu Shrine with world-class contemporary art experiences. The Teshima Art Museum, designed by architect Nishizawa Ryūe and featuring a single installation by artist Naitō Rei, is located near Karato Port amid beautifully restored terraced rice paddies. The museum is a must-visit destination during any trip to the island.

Other art sites on Teshima include works installed as part of the Setouchi Triennale international art festival, which takes place every three years across multiple islands. The Shima Kitchen, a community dining project, offers meals prepared with locally grown ingredients in a renovated traditional house. Nearby Naoshima and Shodoshima islands are also easily accessible by ferry, offering additional art museums, historic sites, and scenic beauty.

For nature lovers, a hike to the summit of Mount Dan rewards visitors with panoramic views of the Seto Inland Sea. The mountain's forest of sudajii (Castanopsis sieboldii) trees has been designated a Natural Monument by Kagawa Prefecture and is the source of the groundwater that feeds the Karato spring.