Taiwan’s Last Sea Women Fight to Preserve the Hainu Tradition
As of July 5, 2026, the traditional practice of seaweed harvesting in Taiwan’s Magang village faces a critical decline, with only a few women over age 70 still active. The practice, which involves collecting gelidium algae, is threatened by an ageing workforce, rural-to-urban migration, and intensifying coastal real estate development.
The vanishing practice of the Hainu
For decades, the women of Magang, known as hainu or “sea women,” have harvested “stone flowers” from the intertidal zones along Taiwan’s northeastern coast. Wu Feng-chiao, a 72-year-old harvester, remains one of the few practitioners still active in the village. Her work involves navigating slippery, rock-strewn coastlines to collect algae, which is then sun-dried and processed into agar-agar.
The process is labor-intensive. Harvesters must haul sacks weighing between 20 and 25 kilograms across uneven terrain. Once back on land, the seaweed undergoes a rigorous cleaning process, involving the removal of debris before it is dried for four days and boiled to extract the gelatinous substance. Despite the physical strain, the economic return remains modest; 300 grams of dried algae yields approximately 50 bottles of agar-agar cooler, retailing for roughly $1.30 each.
Demographic shifts and the rural exodus
The decline of the hainu tradition mirrors broader demographic trends in Taiwan, where younger generations increasingly favor urban employment over the remote, arduous lifestyle of coastal fishing villages. This shift has left the future of Magang’s maritime heritage in uncertainty.
While the tradition shares historical parallels with the more widely recognized haenyeo free-divers of South Korea, Taiwan’s harvesters operate strictly within the intertidal zone. The lack of younger recruits suggests that without formal intervention or cultural preservation programs, the knowledge of harvesting cycles and coastal safety—skills passed down through generations—may be lost within the next decade.
For families attempting to maintain ancestral properties or manage land-use disputes, professional guidance is becoming a necessity. Engaging [Local Land-Use Legal Specialists] is often the first step for residents looking to protect historical village boundaries from encroaching commercial interests.
Environmental and commercial pressures
Beyond the aging workforce, harvesters report an unexplained decrease in seaweed availability. Wu noted that the harvest has been “especially scarce this year,” a concern that complicates the economic viability of the trade. Simultaneously, the village faces pressure from property developers seeking to capitalize on the scenic northeastern coastline.
In response to these threats, the Sandiaojiao Cultural Development Association was formed in 2018. The association focuses on the preservation of the village’s traditional stone houses and the advocacy for the hainu way of life. These community-led efforts often require assistance with structural preservation and historic site designation. Property owners and preservationists in such regions frequently consult with [Cultural Heritage Preservation Consultants] to ensure that local ordinances support the protection of traditional architecture and land rights.
The role of local governance and infrastructure
The survival of traditional coastal livelihoods in Taiwan is often tied to municipal zoning laws and environmental protection statutes. As development projects in New Taipei City continue to expand, the intersection of private property rights and cultural preservation has become a flashpoint for local governance.
According to the New Taipei City Government, coastal management initiatives must balance economic development with the maintenance of traditional maritime practices. However, for residents like Wu, the primary challenge remains the physical toll and the lack of a younger generation to carry the mantle. The resilience of the hainu is not merely an economic concern but a matter of cultural heritage protection, often necessitating the involvement of [Community Development and Advocacy Organizations] to lobby for the recognition of these practices as intangible cultural assets.
Looking ahead: Can the tradition be sustained?
Despite the obstacles, the connection to the sea remains a powerful motivator for the few remaining harvesters. The work is physically punishing, yet the pull of the water—and the desire to prevent the total erasure of a centuries-old way of life—keeps the tradition alive, if only by a thin margin.
The future of Magang’s sea women depends on whether the community can successfully bridge the gap between its aging practitioners and a younger generation that is currently detached from the coastline. Whether through state-sponsored apprenticeship programs or private cultural investment, the clock is ticking for one of Taiwan’s most distinct maritime legacies.
As the village continues to resist development pressures, the need for organized, legal, and structural support has never been greater. Those seeking to assist or participate in the preservation of such communities often rely on [Civic Infrastructure Support Services] to navigate the complexities of modernizing while maintaining historical integrity. The tides at Magang are changing, and the preservation of the hainu will require more than just the persistence of its elders; it will require a sustained commitment to the coastal economy they helped build.