Swift Swimmer A Marine Corps student assigned to the Marine Corps Instructor of Water Survival course conducts a distance swim at Marine Corps Air Station Miramar, Calif., May 9, 2023. The course is intended to train Marines and sailors on the skills required for water survival. SHARE: Download: Full Size (1.76 MB) Tags: Marine Corps Credit: Marine Corps Cpl. Trey Q. Michael VIRIN: 230509-M-LH140-0446A.JPG Photo Gallery