The Avalon Harbor Underwater Cleanup, hosted by the Catalina Conservancy Divers, is an annual dive event held in Avalon Harbor at Catalina Island once a year on the Saturday following President’s Day. The event was started in the 1970’s by the local dive community in an effort to cleanup Avalon Harbor, and this event is the only time diving is permitted there. The event has grown over the years to become one of the most publicized and popular dive events in Southern California.
Visit Catalina Island Conservancy