Hawaiki via Spirits Bay, Cape Reinga and the Three Kings Islands at the extreme north of the North Island of New Zealand — giving a possible pointer as to the direction in which Hawaiki may lie. Until , many anthropologists had doubts that the canoe-legends described a deliberate migration, tending to believe that the migration occurred accidentally when seafarers became lost and drifted to uninhabited shores. In 1947 Thor Heyerdahl sailed the "Kon-Tiki", a balsa-wood raft, from South America into the Pacific in an attempt to show that humans could have settled Polynesia from the eastern shores of the Pacific Ocean,
Thor Heyerdahl great diversity in race, nationality, religion and political viewpoint in order to demonstrate that at least on their own little floating island, people could cooperate and live peacefully. Additionally, the expedition took samples of marine pollution and presented their report to the United Nations. Heyerdahl built yet another reed boat, "Tigris", which was intended to demonstrate that trade and migration could have linked Mesopotamia with the Indus Valley Civilization in what is now Pakistan and western India. Tigris was built in Iraq and sailed with its international crew through the Persian Gulf to Pakistan and made its way into the