English: The prime crew of the first manned Apollo space mission, Apollo 7, participates in water egress training in the Gulf of Mexico. In hatch of the Apollo egress trainer (command module) is astronaut Walter M. Schirra Jr. Sitting in life raft are astronauts Walter Cunningham (on left) and Donn F. Eisele. A team of MSC swimmers assisted with the training exercise. The inflated bags were used to upright the trainer prior to egress.