Corps Crucible A Marine Corps recruit participates in the Crucible, the final challenge of recruit training, at Marine Corps Recruit Depot Parris Island, S.C., Oct. 22, 2021. SHARE IMAGE: Download Image: Full Size (1.04 MB) Tags: Marine Corps Photo By: Marine Corps Sgt. Dana Beesley VIRIN: 211022-M-XU431-0013M.JPG Photo Gallery