Honpukuji Temple is a Shingon Buddhist temple located in Awaji City, Hyogo Prefecture. It belongs to the Omuro school of Shingon Buddhism and holds the status of a special head temple. Believed to have been founded in the late Heian period (794–1185), the temple enshrines a statue of Yakushi Nyorai, the Buddha of Medicine and Healing, which is designated as an Important Cultural Property of Awaji City.
The temple is especially famous for its Mizu Mido, or Water Temple Hall, completed in 1991 and designed by internationally acclaimed Japanese architect Tadao Ando. This distinctive reinforced-concrete structure has no imposing traditional roof, which historically symbolized authority. Instead, its defining feature is an oval pool filled with lotus plants. The building received the 34th Building Contractors Society Award in recognition of its architectural design.
Honpukuji is believed to date back to the late Heian period and is also recognized as the 59th sacred site on the Awaji Shikoku pilgrimage route. Set amid tranquil natural surroundings, the temple grounds offer views across Osaka Bay.
The modern appearance of the Water Temple Hall creates a striking contrast with the temple’s long religious history. Designed by Tadao Ando, the building combines simple concrete forms, water, light, and carefully arranged spaces to create an atmosphere of contemplation. It has become one of Awaji Island’s most distinctive architectural landmarks.
Honpukuji is the sixth stop on the Awaji Hana Henro flower-viewing route. In spring, Yoshino cherry trees brighten the grounds with their blossoms. Summer brings another highlight: the large flowers of the ancient Oga lotus, grown from seeds discovered in geological layers dating back approximately 2,000 years.
From June through July, the lotus pond becomes particularly beautiful as the flowers bloom across the water, creating a serene and almost otherworldly atmosphere. The pond surrounds the central staircase leading down to the main hall, where the statue of Yakushi Nyorai is enshrined.
The Water Temple Hall stands on a low hill in northeastern Awaji Island, overlooking Osaka Bay. Its unusual design places the main hall beneath an oval-shaped lotus pond made of reinforced concrete. Rather than presenting a conventional temple roof, the building uses water and lotus flowers as its symbolic and visual centerpiece.
Visitors approach through a wooded path before encountering a large, curved concrete wall. This wall serves as a symbolic boundary between the everyday world and the sacred space beyond it. Walking around the wall leads to the lotus pond, where a straight staircase appears to cut across the water’s surface.
Descending the staircase brings visitors to a vermilion-painted corridor leading into the main hall. The interior continues the same rich red color scheme, creating a dramatic transition from the pond’s open, natural setting to the enclosed space of worship.
The statue of Yakushi Nyorai stands inside the hall, with the west behind it. When the large doors are opened, natural light enters from behind the statue, illuminating it in a way that evokes the Buddhist vision of the Western Pure Land. The interplay of light, color, and architecture gives the space a distinctive spiritual atmosphere.
The lotus pond, which also serves as the roof of the Water Temple Hall, is planted with water lilies in shades including pink and white, as well as Oga lotus plants. During the flowering season, the surface of the water becomes a vivid display of color.
Water lilies are generally at their best from May through September, while the Oga lotus typically blooms from June through July. These seasonal changes give the temple a different appearance throughout the warmer months and make the pond one of its most appealing features.
Honpukuji is also the family temple of Toshio Inoue and his family, associated with the founding of Sanyo Electric. A commemorative monument stands on the grounds.
When Tadao Ando first proposed the design, he envisioned a temple that visitors would enter through a field of lotus flowers. The idea initially faced opposition from the head priest and more than 300 supporting parishioner households, who were accustomed to the conventional form of a Buddhist temple.
Ando’s concept grew from a fundamental question: What should a temple represent? Traditional temples often feature large roofs, which can be seen as symbols of authority. Ando proposed replacing this imposing symbol with the lotus, a flower deeply associated with Buddhist teachings and spiritual purity.
To seek further guidance, Ando consulted Daiki Tachibana, a respected Buddhist priest associated with the head temple of Honpukuji in Kyoto. Tachibana supported the concept, explaining that entering the lotus—the flower at the heart of Buddhist symbolism—was an especially fitting expression of Buddhist thought. His endorsement helped persuade the temple community, and the innovative Water Temple Hall was ultimately realized.
Honpukuji Temple is located at 1309-1 Ura, Awaji City, Hyogo Prefecture. From the Tateishikawa bus stop, served by Awaji City’s local sightseeing bus route, the temple is approximately a 10-minute walk. Visitors can also travel by car, and parking is available.
The temple is open to visitors from 9:00 a.m. to 5:00 p.m. daily, with no regular closing days. Admission is 400 yen for adults and 200 yen for children.
During the flowering seasons, particularly when the lotus blooms in June and July, the temple attracts visitors who come to admire the colorful pond and its unusual architectural setting. Whether you are interested in Buddhist culture, contemporary architecture, or seasonal flowers, Honpukuji offers a memorable experience that brings these elements together in a peaceful setting.