Wikipedia
Ui-te-Rangiora
Ui-te-Rangiora is believed to have been a 7th-century Polynesian navigator from the island of Rarotonga. According to Māori legend, Ui-te-Rangiora sailed south and encountered ice floes and icebergs in the Southern Ocean. He called this area of southern ocean Tai-uka-a-pia (sea foaming like arrowroot) due to the ice floes being similar to arrowroot powder. It is also claimed by some that Ui-te-Rangiora reached the Ross Ice Shelf, although he did not land on it.