Guinness Record attempt for most people on a surfboard

HUNTINGTON BEACH, CA - JUNE 20: Hanging 600: Crowds gather on the pier and the beach to watch surfing history being made as 66 surfers break the World Guinness Record for most people (66) on a surfboard and the biggest surf board (42 1/4 feet) in Huntington Beach, Calif., on June 20, 2015. 66 surfers, including surf champions, celebrities and local heroes, rode a custom 42 1/4 -foot-long surfboard breaking the Guinness World Record for "Most People Riding a Surfboard at Once." The record for biggest surfboard (42 1/4 feet) hasn't been confirmed. The event was part of a celebration of International Surfing Day festivities. The board measures 42 1/4 feet long, 11 feet 1 inch wide and 16 inches thick. (Photo by Allen J. Schaben / Los Angeles Times via Getty Images)