Dive Sites Dive Travel Diving News Diving Safety New Dive Gear SCUBA Gear Reviews SCUBA Instruction Technical Diving Support the USC Catalina Hyperbaric Chamber Joe Ross April 20, 2011 No Comments dive travelPADIproject awarescuba instruction Catalina Chamber Day 2011 Chamber Day 2011 Catalina Chamber Day is Wednesday, May 4. All proceeds support the Catalina Hyperbaric Chamber. Cost is $90, plus $30 for food and air, and includes 2 dives aboard one of several area dive operators.