considered so inspiring by surfers that entire audiences of them would yell and shout for the duration of the movie. The film caught the attention of a new band called Pink Floyd who donated music for the loosely biographical following film, Crystal Voyager, which Greenough wrote and narrated; Pink Floyd also used the film as a backdrop for their concerts. Coca-Cola used some of Greenough's videos of wave barrels in a television advertisement in 1975. Part of Crystal Voyager was shot at ten times normal speed, creating a continuous flow of intensely detailed images of water droplets hitting the lens, all moving in dance-like synchronization with the motion of the wave. Greenough has worked in recent decades on Dolphin Glide, an experimental underwater photo series which captures images of dolphins riding waves, using a special ski he invented. Greenough is also featured in an early scene in Bruce Brown's surf film The Endless Summer. Boats While tinkering with surfboard designs, Greenough also experimented in boat hull design. While living in California he redeveloped the American Boston Whaler hull to suit his particular needs, which included capsize resistance and open ocean mishandling flaws such as pearling and broaching. He designed a modified cathedral type hull and has used this design to build a number of beach-launchable and offshore fishing boats for himself for use both in America and Australia. He built a 15 foot version in Australia which he rigged with a camera boom for filming his movie Dolphin Glide. His hull design is an exceptionally good performer in the rugged surf surf experienced on the Australian coastline, and it allowed him to follow and film pods of Dolphins through the breaking surf without fear of mishap. His next development was an expanded jet-ski type watercraft which was intended as a Rescue Craft in the hopes the Surf Life Savers New South Wales (SLSNSW) would pick it up as a replacement for their current fleet of jet skis, but little interest was shown by the SLSNSW. He has since used this boat primarily for fishing the reefs offshore Eastern Austraiia. This ocean craft design, known as the GARC (Greenough Advanced Rescue Craft), was a product he developed to perform rescue missions in the breaking surfline and on the open ocean. The GARC is currently manufactured by MAPC (Maritime Applied Physics Corporation), which holds the patents for the craft. This jet-ski look-alike