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,
Pre-Columbian rafts It was during these trade voyages that South American sailors may have introduced metallurgy to Mexico. The purported trade between Ecuador and Mexico consisted of luxury items, including Spondylus (spiny oyster) and Strombus (conch) shells, which were prominently traded from their origins in the warm ocean waters of Ecuador throughout the Andes and up and down the coasts of South America. Since the voyage of the Kon-Tiki in 1947, there have been numerous crossings of the Pacific Ocean by raft from South America to Polynesia. In the 1990s, four attempts to sail a raft from Ecuador to Mexico failed, although