Port Phillip is also known as a temperate water scuba diving destination. The shore dives from beaches and piers around the Bay provide a wide variety of experiences on day and night dives. Boat diving in Port Phillip provides access to a remarkable variety of diving environments including wrecks, reefs, drift dives, scallop dives, seal dives and wall dives. Of particular interest are the five scuttled J-Class World War 1 submarines and the Ships' Graveyard off Torquay. With 3 Marine Sanctuaries and easily accessible piers, Port Phillip is also popular for recreational snorkeling.