For thousands of years, Japan’s ama have descended into the sea with little more than a mask, a basket and a single breath. Once providers to emperors and shrines, these remarkable women have since become pearl-diving icons, photographic muses and fixtures of popular culture.
The first sound is not the splash, but the whistle.
It rises from the water off Japan’s rocky coast: a long, high exhalation known as isobue—the “sea whistle”. It is the sound of an ama returning to the surface, emptying her lungs before drawing another breath and disappearing again beneath the waves.
Amasan is the courteous way of addressing her, but the occupation itself is ama—usually written with characters meaning “woman of the sea”. For centuries these free-divers have harvested abalone, turban shells, sea urchins, sea cucumbers and seaweed from the seabed without scuba equipment. They are frequently called pearl divers, particularly outside Japan, although pearls were never the traditional heart of their livelihood.
The romantic image is familiar: a woman in white, poised on the edge of a wooden boat before slipping almost soundlessly into a dark-blue sea. The reality was colder, harder and considerably less picturesque.
An ama might make scores of descents during a working session, searching underwater rocks for shellfish and prising abalone loose before her breath expired. Some worked from shore in relatively shallow water; others descended from boats, sometimes using weighted stones to carry them rapidly towards the bottom. Each dive demanded judgement—of currents, weather, visibility and the body’s dwindling supply of air.
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| Image: Kusukazu Uraguchi |
No one can say precisely when the tradition began. Archaeological discoveries around the Shima Peninsula include heaps of abalone shells and antler tools dating back roughly 3,000 years. Ama also appear in the eighth-century Man’yōshū, Japan’s oldest surviving anthology of poetry, while an official record from AD 927 refers specifically to the divers of Shima. Historical documents show that their catch travelled beyond fishing villages to the imperial court and sacred institutions, including the great Ise Jingu shrine. Central Japan Tourism, Tsunagu Japan
Their survival was partly due to the peculiar social world created around the occupation. Ama communities passed knowledge from older women to younger ones: where abalone concealed themselves, how the sea changed with the seasons and when conditions were too dangerous. Around the fire in the amagoya, or divers’ hut, practical instruction mingled with gossip, ritual and folklore.
The women carried protective symbols on their headscarves and tools. Stars drawn in a single, unbroken line were believed to guard against misfortune. Shrines received prayers for safe return and abundant seas. Harvesting was governed by local seasons, minimum shell sizes and closed areas—customary restraints that helped prevent the seabed from being stripped bare.
This was female knowledge, female labour and, in many villages, a rare source of female economic independence. An accomplished ama could make a substantial contribution to her household and continue working long after women elsewhere might have been expected to retreat from public life.
From abalone to pearls
The ama’s modern fame owes much to one man: Kōkichi Mikimoto.
In 1893 Mikimoto successfully produced cultured pearls in Mie Prefecture’s Ago Bay. Ama were employed to retrieve pearl oysters, return them to the seabed after seeding and move them when storms or harmful algal blooms threatened the beds. Their underwater skill became essential to the young industry—and the “Japanese pearl diver” entered the international imagination. Japan National Tourism Organization
Yet the association can be misleading. Ama generally harvested food, not naturally occurring pearls. Mikimoto transformed a regional working tradition into part of the story of Japanese luxury, and later into spectacle. At Mikimoto Pearl Island in Toba, white-clad ama still perform diving demonstrations, preserving the most recognisable version of the image long after working divers adopted warmer, more practical wetsuits.
Photography added another layer of mythology. During the mid-20th century, photographers including Yoshiyuki Iwase and Kusukazu Uraguchi recorded ama at work and at rest. Their pictures—of sun-browned women on bare rocks, bodies wet from the sea, laughing beside hut fires or gazing calmly towards the horizon—circulated far beyond the communities in which they were made.
To Western eyes, these photographs seemed to reveal an elemental Japan: independent women living outside modern convention, suspended somewhere between worker, athlete and mermaid. Their frequent nudity, entirely practical within the original context, was sometimes repackaged as exoticism. The ama became less a fisherwoman than a fantasy of freedom, sensuality and intimacy with nature.
Popular culture followed.
In Japan, the ama received a more affectionate reinvention in the enormously successful 2013 NHK television drama Amachan. Its story of a Tokyo teenager who moves to coastal Iwate and trains as a diver turned a declining regional occupation into a national phenomenon. Tourism surged, the programme’s expressions entered everyday conversation and the ama briefly became symbols of youthful energy and regional recovery after the 2011 earthquake and tsunami.
They have also surfaced in documentaries, manga, anime and art. Even Hokusai’s erotically charged 1814 print The Dream of the Fisherman’s Wife is commonly associated with an ama-like shell diver—an indication of how long the woman of the sea has occupied the border between daily labour and cultural imagination.
The vanishing whistle
Today, the ama stand uneasily between living profession and heritage performance. Their numbers have fallen dramatically as fishing communities age, marine resources decline and younger women choose occupations offering steadier incomes and less physical danger.
In Shirahama, Chiba Prefecture, the number of working ama fell by 70 per cent between 2006 and 2023, leaving just 40 with an average age of 72. A traditional sea festival has increasingly relied on volunteers simply to continue. Reuters
Tourism offers both rescue and risk. Ama huts now welcome visitors for seafood meals and conversation; museums collect their tools and stories; demonstrations keep the silhouette of the white-clad diver before the public. But there is a difference between preserving an image and sustaining a working culture.
The ama were never merely picturesque pearl maidens. They were skilled harvesters, family providers and custodians of a hard-won body of maritime knowledge. Their history belongs not only to folklore but to labour, ecology and the largely unrecorded economic lives of women.
Out at sea, an elderly diver surfaces. Her basket bumps against the swell. For a moment she rests, her face barely above the water. Then comes the ancient whistle—sharp, lonely and unmistakably alive—before she folds at the waist and vanishes once more into the deep.
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