Extended Back Balance Drill

Posture: Belly in, neck tall, chin back.
Begin in Back Balance
Extend one arm, and rotate as far as comfortable onto that side.
Unused arm: Relaxed at side.
Head: Looking straight up.
Legs: Kick gently and compactly, keeping thighs and feet near the surface.
Breathing: Controlled swimming breathing: out through the nose, in through the mouth.