The Viracocha expedition first reed boats built? Were ancient mariners able to cover large distances in reed rafts? Did ancient cultures utilize the ocean currents and winds as highways rather than barriers in search of new lands? Were the ancient navigators able to find their way across endless miles of ocean? These are questions the scientific world has debated for centuries. The expeditions of explorer/anthropologist Thor Heyerdahl captured the imagination of the world with the Kon-Tiki balsa log raft voyage on the Pacific in 1947, his Ra Expedition, a reed raft journey across the Atlantic in 1970 and his Tigris reed boat voyage
Kon-Tiki expedition sailed roughly west carried along on the Humboldt Current. The crew's first sight of land was the atoll of Puka-Puka on July 30. On August 4, the 97th day after departure, "Kon-Tiki" reached the Angatau atoll. The crew made brief contact with the inhabitants of Angatau Island, but were unable to land safely. Calculations made by Heyerdahl before the trip had indicated that 97 days was the minimum amount of time required to reach the Tuamotu islands, so the encounter with Angatau showed that they had made good time. On August 7, the voyage came to an end when the