An icebreaker
Pacific navigators once crossed thousands of open-ocean miles using only stars, swells, and birds, a skill nearly lost by the 1970s. A Micronesian master navigator broke a family tradition to teach it to a new generation, and it has been sailed and taught ever since.
In 1976 he guided the voyaging canoe Hōkūleʻa from Hawaii to Tahiti without instruments, breaking with a tradition that kept wayfinding knowledge inside one family line, and later trained a Hawaiian student directly in the method.
After training under a Micronesian master navigator, he became in 1980 the first Hawaiian in centuries to sail long distance using wayfinding alone, and has since led the training of new navigators across the Pacific.
As a co-founder of the Polynesian Voyaging Society in 1973, he helped build Hōkūleʻa to test whether the Pacific islands were settled through deliberate, skilled navigation rather than accidental drift, and sailed on her first Tahiti voyage.
In his 1972 book he recorded the working methods of Pacific navigators firsthand, sailing under their instruction using no modern aids, and his account helped inspire the wider revival of traditional voyaging and canoe building.