Navigation Course A Marine Corps recruit conducts a land navigation exercise at Marine Corps Recruit Depot Parris Island, S.C., March 28, 2023. Land navigation is part of basic warrior training and teaches recruits how to use a compass and topological map to find notable landmarks. SHARE: Download: Full Size (8.37 MB) Tags: marine corps Credit: Marine Corps Pfc. Landon C. Lingle VIRIN: 230328-M-RT718-763.JPG Photo Gallery