RedactedNarrative: OPERATOR 1 was operating his personally owned vessel.  OPERATOR 1's son, was wake surfing behind the vessel while his daughter was acting as the observer.  WAKESURFER completed several surfing runs and had fallen just prior to the incident.  OPERATOR 1 circled around to allow WAKESURFER another run.  As OPERATOR 1 positioned the rear of the vessel near WAKESURFER so he could grab the rope, he claims to have shifted the boat into neutral just before hearing observer scream.  OPERATOR 1 stated he went to the stern of the boat and observed WAKESURFER with his foot out of the water and realized WAKESURFER had been hit by the propeller, stating it appeared as though his foot had been bitten by a shark.  OPERATOR 1 jumped in the water and assisted WAKESURFER into the boat.  OPERATOR 1 started the boat and transported WAKESURFER to the Indian Creek boat launch for medical attention.