Chamber Day 2025 is the United States’ largest single-day scuba charity event—and a vital fundraiser for the Catalina Hyperbaric Chamber, ensuring it remains operational 24/7/365 to protect the diving community.

Choose your way to participate in this year’s event:

• Chamber Day: Experience two dives and a tour of the Chamber.
• The Flying Dutchman: Perfect for non-divers or those staying on land.
• The Chamber Challenge: Make a direct donation to support our mission.
• Chamber Evening: Enjoy a formal dinner at the Aquarium of the Pacific.
• Virtual Chamber Evening: Join the event from the comfort of your home.

Mark your calendar for Wednesday, May 7, 2025, and be part of this incredible event. Together, we can support diver safety and secure the future of the Catalina Hyperbaric Chamber.