UI-Te-Rangiora

Ui-te-Rangiora is a legendary Polynesian navigator from Rarotonga said to have sailed south on the vessel Te Ivi o Atea and encountered a place called Tai-uka-a-pia, described as a foggy, sunless sea where rocks grew out of the water. Nineteenth-century scholar Stephenson Percy Smith interpreted Tai-uka-a-pia as a frozen sea of ice floes and compared the whiteness to powdered pia (Polynesian arrowroot, Tacca leontopetaloides), an interpretation that prompted claims Ui-te-Rangiora reached Antarctic waters and even discovered Antarctica in the early seventh century.

Modern scholarship and indigenous authorities dispute that reading. Linguists note Cook Islands Māori lacked a pre‑European word for ice, and alternative translations render Tai-uka-a-pia as a sea covered with foam like arrowroot. Anthropologist Te Rangi Hīroa and Ngāi Tahu treat the account as mythic and influenced by post‑European material rather than a factual voyage; primary versions of the legend do not explicitly place the ancestor in Antarctic seas. Natural explanations such as vast pumice rafts from submarine eruptions - an event observed in 2012 near the Kermadec Islands - offer non‑glacial analogues, and archaeological claims for pre‑European Polynesian presence on subantarctic islands remain unsubstantiated or ambiguous.