The Ryukyu Islands, also known as the Nansei Islands or the Ryukyu Arc, are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ryukyu Islands are divided into the Satsunan Islands and Okinawa Prefecture. From Wikipedia
Using a dugout canoe built with prehistoric tools, ocean-current simulations, celestial navigation, researchers demonstrate how Paleolithic voyagers could have paddled 140 miles to reach the Ryukyu Islands.
