Parris Island has been the site of Marine Corps recruit training since Nov. getting evaluated during final drill at Marine Corps Recruit Depot Parris Island, S.C., .Marine Corps Recruit Depot Parris Island is an , acre . km military installation located within Port Royal, South Carolina, approximately miles . km south of Beaufort, the community that is typically associated with the installation. MCRD Parris Island is used for the training of enlisted Marines..MCRD PARRIS ISLAND, SC OFFICIAL PAGE, Beaufort, SC. K likes. Welcome to the Official Page of Marine Corps Recruit Depot Parris Island Eastern .