First Phase teaches students the importance of cool-headedness, perseverance and, most importantly, teamwork. Students will be taught to use both an open and closed circuit diving system. Physical conditioning continues but is not stressed as much as in First Phase. Second Phase transforms students into Basic Combat Divers. Students will travel to San Clemente Island and learn the basics in demolitions, reconnaissance and land warfare.
Physical training picks up again to challenge the students' endurance.
Students are also taught land navigation, small unit tactics, patrolling techniques, rappelling, infantry tactics and military explosives. This time is spent watching the potential SEAL officer and to sharpen his skills. The student will also be sent to Army Airborne School, Fort Benning, Georgia to learn basic parachuting. The new Seal officer is sent to his Seal Team and will stay there for three to four years.