CORONADO, Colo. (July 17, 2021) U.S. Marines with Co. C, 1st Battalion, 5th Marine Regiment, 1st Marine Division, put on their fins during a Scout Swimmer Course on Naval Amphibious Base Coronado, California, July 17, 2021. The Marines learned the skills necessary to plan and execute swimmer reconnaissance for a small boat raid company in preparation for deployment. (U.S. Marine Corps photos by Cpl. Jailine L. AliceaSantiago)