SIMA (Surf Industry Manufactures Association) is one of Anonymous' original clients.  Noah McMahon and the Anonymous staff have had the honor of working with the organization for more than 15 years to produce Waterman's Weekend.

The Waterman's Weekend has served as the main fundraising source for the SIMA Environmental Fund since its inception.  Waterman's Weekend is a two-day fundraising event held each August that raises funds to be granted to various environmental groups bases on their dedication to preserving and protecting the world's oceans, beaches and waves.  The weekend event begins with the Waterman's Classic Golf Tournament, featuring a lively day on the links.  The Waterman's Ball reigns as the main event, which not only allows the surf industry and friends of the environment to raise money for important causes, but also honor and celebrate those making significant contributions in the industry.