- This event has passed.
USC’s Catalina Hyperbaric Chamber and Wrigley Institute for Environmental Studies – Catalina Conservancy Divers are proud to host this annual event. This is the only time scuba diving is allowed in Avalon Bay, with 500+ expected volunteer divers collecting trash and debris. Awards ceremony follows on Wrigley Stage with prizes & giveaways. Proceeds benefit the USC Hyperbaric Chamber and the Wrigley Institute for Environmental Studies Scientific Diving Program.