What distinguished the Austronesian migrations from Pacific islands human into Americas?

The Austronesian migrations from the Pacific islands into the Americas were distinguished by the use of advanced sailing techniques, such as outrigger canoes, and the utilization of celestial navigation. These seafaring capabilities enabled the Austronesians to travel long distances across the open ocean and reach the shores of the Americas, likely arriving in South America around 1,500-1,300 BCE. This distinguished their migration from other human movements into the Americas, which primarily occurred via the land bridge between Asia and North America.