Fishing Customs of Kudaka Island

Fishing Customs of Kudaka Island: A Living Heritage of Okinawa's Sacred Sea

Drifting in the East China Sea about five kilometers off the Chinen Peninsula of Okinawa's main island lies Kudaka Island (Kudaka-jima), a slender strip of Ryukyu limestone less than 1.4 square kilometers in area. Known throughout Japan as the "Island of the Gods," Kudaka is the place where, according to Ryukyuan creation myths, the deity Amamikiyo first descended from the heavens to begin the work of building the world. Yet beyond its renown as a spiritual heartland, Kudaka has long sustained a remarkable culture of seafaring and fishing, one in which the rhythms of the sea, the calendar of the gods, and the daily lives of the islanders are inseparably woven together. In 1994, the Agency for Cultural Affairs formally recognized this extraordinary inheritance as the Fishing Customs of Kudaka Island, an intangible folk cultural property selected by the national government as worthy of detailed documentation.

For visitors from abroad seeking a glimpse of an older Japan—one in which work, worship, and community are still bound together as a single way of life—Kudaka Island offers an experience found almost nowhere else in the country.

A Sacred Island and Its People of the Sea

Kudaka has been considered sacred since at least the era of the Ryukyu Kingdom, when the islands were governed from Shuri Castle and the royal court traveled here to perform rites that secured the wellbeing of the realm. The island's flat profile, ringed by coral reefs and dotted with sacred groves known as utaki, has fostered an unusually deep continuity of custom. While many traditions in Okinawa were transformed by the upheavals of the modern era, Kudaka preserved an unbroken rhythm of seasonal ceremonies—more than thirty are still observed each year, all timed to the lunar calendar.

Historically, the men of Kudaka earned their living almost entirely from the sea. Their skill as fishermen was so renowned that in Okinawan tradition they were spoken of in the same breath as the celebrated fishermen of Itoman. Boys began their preparation early: at the age of thirteen, they joined the older fifteen-year-olds—known as nnaguna, "those who gather tribute shells"—to receive structured training in the techniques and discipline of the sea. By sixteen, a young man was considered to have entered adult village life, taking on tax obligations and a full role in communal ceremonies.

The island's social organization is equally distinctive. Women have always held a central position in religious life, organized under the leadership of the Noro priestess and a hierarchy of female ritual specialists called Kunigami, with all the island's women collectively forming a ceremonial body known as Yajiku. Men, in turn, served in hereditary positions and in specially appointed roles linked directly to fishing, the most important of which is the Sōrui-ganashi, the "rod-bearing deity" who mediates between the community and the sea god.

Why This Living Tradition Was Designated

The Agency for Cultural Affairs selected the Fishing Customs of Kudaka Island on December 13, 1994 as an intangible folk cultural property requiring documentation. The selection placed it within the categories of "customs and manners" and "production and livelihood," noting that it preserves typical features of the foundational living culture of the Japanese people. The accompanying commentary observes that the practices encompass prayer rites for abundant catches, training routines, communal fishing, and gatherings of the fishing community—a remarkably complete picture of how a traditional maritime society once organized itself.

What makes Kudaka's case so valuable is not merely the survival of any single rite, but the integrity of the whole. Throughout much of Japan, fishing customs have either disappeared or survived only as fragments. On Kudaka, the calendar of fishing-related ceremonies still maps directly onto the agricultural and ritual calendar of the island, and the leadership of the Sōrui-ganashi continues to organize key communal undertakings. For ethnographers and folklorists, this offers a rare window onto older models of cooperative labor, community guidance, and the spiritual framing of work that were once widespread along Japan's coastlines.

The Rituals and Customs of the Fishing Year

The fishing customs of Kudaka are not a single ceremony but a year-long sequence of rites, each tied to a particular season, species, or social purpose. Visitors who wish to understand the island's culture in depth will find it helpful to know the principal observances.

Highlights for Visitors

Travelers will not, as a rule, witness rituals firsthand: most are performed by community members in places kept apart from outside view, and many take place on dates closed to visitors. Yet the imprint of the fishing traditions is everywhere on the island, and there is much to appreciate.

Walking through the compact village near Tokujin Port, you will pass the Udunmiyā ceremonial grounds, beside which stands the baikan-yā smokehouse where irabu are processed. The structure is unassuming, but its quiet presence tells the story of an unbroken food culture. Out at the island's northern tip lies Cape Kabeeru, called Habyān by the islanders—the legendary landing place of the creator deity Amamikiyo. Along the eastern shore, Ishiki Beach is revered as the place where a golden vessel bearing the seeds of five grains is said to have drifted ashore. Both sites are deeply tied to the island's worldview in which sea, gods, and food are aspects of a single sacred order.

If you have an opportunity to taste irabu-jiru—the soup made from smoked erabu sea snake, simmered with kelp and pork ribs—you will share, in modest form, a food once reserved for kings. Locally it is said that to eat irabu-jiru twice a year is to remain free of colds. The dining establishment near Tokujin Port serves it alongside other island specialties, including bitter-greens salads and bowls of just-harvested sea grapes.

Visitor Information and Etiquette

Kudaka Island is reached from Azama Port in Nanjo City, on the southeastern coast of Okinawa's main island. The crossing to Tokujin Port on Kudaka takes about fifteen minutes by high-speed boat or about twenty-five minutes by ferry. The two services run between them roughly six round trips per day, weather permitting. Bicycles can be rented near the port and are the recommended way to circle the island, which measures only about eight kilometers in perimeter.

Because Kudaka is regarded as sacred in its entirety, visitors are asked to observe a number of important rules. Removing stones, sand, plants, or shells from the island is strictly forbidden. Some sites, including parts of the northern coast and certain utaki sacred groves, are closed to outsiders, either always or during festival days. When major ceremonies are held—such as the lunar fourth-month and ninth-month Hanjanāshī rites, which restrict access to the northern half of the island for several days—visitors are asked to respect the closures. Photography near ritual sites and persons should be approached with care and with permission.

For those who wish to learn more, the NPO Kudaka Island Promotion Association and certified local guides offer tours that introduce the island's history with the discretion the site requires. Several minshuku (family-run inns) and a community lodging facility provide overnight stays for travelers who would like to feel the rhythm of the island after the day-trippers depart.

Beyond Kudaka: Nearby Sites

A visit to Kudaka pairs naturally with a stop at Sefa-utaki, the most sacred site of the former Ryukyu Kingdom and a UNESCO World Heritage Site. Located only minutes from Azama Port, Sefa-utaki was the place from which the kingdom's high priestess gazed across the sea toward Kudaka in ceremony. The pairing of the two destinations gives a fuller sense of how the spiritual geography of southern Okinawa was once organized. Nearby, the limestone caves of Gangala Valley, the white sands of Azama Sansan Beach, and the lookout from Chinen Cape complete a day or two of travel through some of Okinawa's most evocative coastal landscapes.