Discovering the Beauty of Shiraishijima
White Granite Landscapes in Setonaikai National Park
Shiraishijima is a popular destination known for its striking natural scenery. White granite is exposed across much of the island, giving its slopes a snow-covered appearance when viewed from a distance. This distinctive landscape is believed to be the origin of the island’s name, which means “White Stone Island.”
The island has five peaks rising above 100 meters, including Onigajō, Nabekaro, and Ōtamaiwa, also known as Ōtamaishi. Walking trails lead toward the summits, offering opportunities for hiking and orienteering. From the higher viewpoints, visitors can enjoy sweeping panoramas of the island and the surrounding Seto Inland Sea.
Summer Beach Activities and the Shiraishi Odori Dance
During summer, Shiraishijima becomes a destination for seaside recreation. Visitors can enjoy swimming, sea kayaking, and other marine activities. The island also has family-run guesthouses and beachside facilities, making it a pleasant place to stay and experience the relaxed atmosphere of island life. An international exchange villa provides accommodation for overseas visitors and contributes to the island’s international character.
One of the island’s most celebrated cultural events is the Shiraishi Odori, held annually from August 14 to 16. This traditional Bon dance is said to have originated as a memorial for those who died in the Genpei War. Performed in a hauntingly atmospheric setting, it is designated an Important Intangible Folk Cultural Property of Japan and attracts visitors interested in traditional Japanese culture.
History and Cultural Traditions
The Genpei War and Shiraishi Odori
According to local tradition, Shiraishi Odori began as a way to mourn the fallen soldiers of the Genpei War, also known as the Jishō–Juei War. The dance is accompanied by narrative folk songs called kudoki-uta, in which long, story-like verses are sung to a repeating melody.
There are 13 different styles of dance, including men’s dances, women’s dances, and dances performed by young women. The tradition gained wider recognition after being performed outside the island around 1930. Today, it is regarded as one of Okayama Prefecture’s three major traditional dances and remains an important part of the island’s cultural identity.
KaRyūji Temple and the Island’s Religious Heritage
In the early Edo period, Shiraishijima belonged to the Fukuyama Domain in Bingo Province. It is also unusual among remote islands in having undergone land reclamation. Another important landmark is Kairyūji Temple, associated with the Buddhist monk Kūkai, also known as Kōbō Daishi.
According to tradition, Kūkai practiced ascetic training here in 806, the first year of the Daidō era. A large rock known as Fudōiwa stands at the temple’s inner sanctuary. Local belief holds that wishes will come true if they are repeated three times before the rock, making it a popular spiritual destination.
Natural Wonders and Hiking
Unusual Rock Formations and Scenic Viewpoints
Shiraishijima is renowned for its unusual rock formations and enormous boulders. Among the most remarkable is Yoroi-iwa, a Natural Monument designated by the Japanese government. Its surface is marked by a distinctive grid-like pattern of cracks. The formation consists of an aplite dike, created when magma solidified underground and was later exposed at the surface through geological uplift.
Other impressive formations include Ōtama-iwa, Onigajō, and Hato-iwa. Together, these rocks create dramatic landscapes that reveal the island’s distinctive geological character.
Hiking Trails and Orienteering Routes
A network of established trails allows visitors to explore the island’s unusual rocks, forested slopes, temples, and panoramic viewpoints. The Mount Tateishi route is particularly popular with trekking enthusiasts, and trails offer options for a range of experience levels.
From Takayama Observation Point, approximately 150 meters above sea level, visitors can look out over Shiraishijima Beach and the many islands scattered across the Seto Inland Sea. On clear days, distant views may extend to Mount Daisen and Mount Ishizuchi. The combination of sea views, rugged rock formations, and peaceful woodland makes the island an appealing destination for nature lovers.
Cultural Landmarks and Spiritual Sites
Kairyūji Temple and the Buddhist Relic Pagoda
One of Shiraishijima’s notable cultural landmarks is the Buddhist relic pagoda at the inner sanctuary of Kairyūji Temple. Built in 1970, the white pagoda houses a Buddhist relic said to have been presented by Wat Paknam Temple in Thailand, along with a statue of Shakyamuni Buddha believed to date back approximately 1,200 years.
Its bright white appearance makes it one of the island’s most recognizable landmarks, and visitors come to pay their respects and enjoy the tranquil surroundings.
Walking Among the Island’s Seven Peaks
The island’s walking trails connect seven peaks and pass important sites such as Kairyūji Temple, the Buddhist relic pagoda, and Yoroi-iwa. These routes combine outdoor recreation with opportunities to discover the island’s history and spiritual traditions.
Other notable formations include Bikuniiwa, a large rock that has served as an object of religious devotion. Such sites reflect the close relationship between the island’s natural landscape and local beliefs.
Experiences for Visitors
Traditional Dance, Seaside Leisure, and Local Food
Visitors can experience both nature and local culture through activities offered on Shiraishijima. Tours featuring Shiraishi Odori may allow visitors to join the dance themselves, providing an opportunity to participate in a tradition passed down through generations.
In summer, swimming and marine sports are popular ways to enjoy the island’s clear coastal waters. Staying overnight gives visitors more time to explore the hiking trails, discover its cultural landmarks, and experience the slower pace of island life. Fresh seafood from the surrounding Seto Inland Sea is another highlight of a visit.
Orienteering for Different Experience Levels
Shiraishijima also has permanent orienteering courses, including a short route of approximately 2.5 kilometers and a longer course of around 5 kilometers that visits several of the island’s highlights. The Mount Tateishi route offers a further challenge for hikers seeking more extensive exploration.
Whether following a short trail or spending the day walking among the island’s peaks, visitors can enjoy a distinctive combination of natural beauty, geological wonders, and cultural heritage in the heart of the Seto Inland Sea.