RedactedNarrative: Operator #1 & #2 were cruising the PWC's when they collided resulting in a personal injury accident.  The operator of vessel #1 said both operators were turning in tight circles and that he was unable to stop in time to prevent a collision.  Vessel #1 struck the left side of vessel #2.  Operator of vessel #2 sustained a fractured skull and broken leg.  No other injuries were reported.