Kon-Tiki expedition raft "Seven Little Sisters" from Peru to American Samoa, successfully completing the journey. He sailed , which was farther than "Kon-Tiki". In a second great voyage ten years later, he rafted from South America to Australia with a metal raft "Age Unlimited". In 1955, the Czech explorer and adventurer Eduard Ingris attempted to recreate the "Kon-Tiki" expedition on a balsa raft called "Kantuta". His first expedition, "Kantuta I", took place in 1955–1956 and led to failure. In 1959 Ingris built a new balsa raft, "Kantuta II", and tried to repeat the previous expedition. The second expedition was a success. Ingris
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