Beach Crawler Marine Corps Lance Cpl. Justis Tinoco crawls on the beach during a scout swimmer course at Naval Amphibious Base Coronado, Calif., July 16, 2021. The course provides Marines with the skills necessary to plan and execute swimmer reconnaissance for small boat raids. SHARE IMAGE: Download Image: Full Size (1.54 MB) Tags: marine corps Photo By: Marine Corps Cpl. Jailine AliceaSantiago VIRIN: 210716-M-KJ825-1371.JPG Photo Gallery