By definition, the Marine Corps is an amphibious assault force. Therefore all Marine recruits are required to know how to survive in the water. Recruits receive basic water survival training at the indoor pool, which is safely conducted by specially trained instructors. Training in combat water survival develops a recruit’s confidence in the water.
All recruits must pass the minimum requirement level of Water Survival Basic (WSB), which requires recruits to perform a variety of water survival and swimming techniques. If recruits meet the WSB requirements, they may upgrade to a higher level.
All recruits train in the camouflage utility uniform, but those upgrading may be required to train in full combat gear, which includes a rifle, helmet, flak jacket and pack.