Explore all things nautical in L.A.'s Marina, May 19-20. Yacht displays, vendor booths, games, festival food, and more. Saturday times are 10 a.m. to 6 p.m. New for 2018, Discover Marina del Rey, a family-focused festival formerly offered in October, will be merging with MarinaFest's Sunday activities, adding bounce houses and other kids' activities from 10 a.m. to 5 p.m.