The San Diego Bay Parade of Lights is a time-honored holiday tradition brought to San Diego by the boating community. Continuing its long-standing San Diego tradition, the 45th annual San Diego Bay Parade of Lights promises to dazzle and entertain bayfront crowds. Participants in this year's highly anticipated holiday boat parade will decorate their boats to fit this year's theme, "It Began with a Roar - San Diego Zoo Celebrates 100 Years."