Crystal Voyager is a 1973 Australian surf film directed by David Elfick. It was filmed, written and narrated by surfer, photographer and filmmaker George Greenough who had previously made the 1970 surfing film The Innermost Limits of Pure Fun.The film is structured as a loose biography of Greenough and was shot largely in California. It documents Greenough’s search for uncrowded waves, which led to the construction of his 37-foot ocean-going yacht.