 With a research grant from the Australian National University and with his second wife, two daughters and 19-year-old son, he set out for the Pacific again to study traditional navigation techniques.While there, he was welcomed into the cultures of various Pacific Islanders such as Hipour, who taught him their navigational lore, heretofore largely unrecognized by those outside Polynesia.Lewis chronicled this voyage and research in various articles and in his books "We, the Navigators" and "The Voyaging Stars".