According to an article in the "L.A. Weekly", after the film was edited, Michael Hynson and Bruce Brown (I) toured the U.S. in a bus in the summer of 1964, screening the documentary in high school auditoriums and Lions Clubs. The film originally didn't even have audio; Brown would play surf records and narrate the action live.
An article in the "L.A. Weekly" about the film stated that three years after Bruce Brown (I) and Michael Hynson returned from a cross-country trip promoting the film, it finally took off. Brown was getting great press and being called the surfing millionaire. He had put up $50,000 of his own money for promotion, and that investment was finally paying off. The film eventually earned $30 million.