Dive Doctor Navy Lt. (Dr.) Jonathan Casey Brown, medical physician and dive medical officer at Navy Experimental Diving Unit, Naval Support Activity, Panama City, Fla., poses outside the ocean simulation facility that mimics pressurized ocean conditions at the Navy Experimental Diving Unit, Naval Support Activity Panama City Division, Panama City Beach, Fla., July 13, 2016. DoD photo by EJ Hersom SHARE: Download: Full Size (1.24 MB) Credit: EJ Hersom VIRIN: 160713-D-DB155-012.JPG Photo Gallery