Water Patrol Marines patrol through water during a Marine Corps combat diving supervisor course at Camp Schwab, Okinawa, Japan, May 20, 2020. The course lasts two weeks and allows the Marines to be supervisors of their platoon while conducting diving operations. SHARE: Download: Full Size (2.04 MB) Tags: Marine Corps, Indo-Pacific Credit: Marine Corps Cpl. Savannah Mesimer VIRIN: 200520-M-GB409-1005.JPG Photo Gallery