RedactedNarrative: Did not observe boat.  Passenger on boat called and stated another passenger had been injured while they were tubing.  Deputy spoke with victim and husband at hospital.  Spoke with operator several days after the incident and was advised he was pulling a tube and the rope became hooked on his wife's elbow causing her to fall in the boat and sprain her elbow.  Initially it was thought she had broken her arm but it turned out it was a sever sprain.  No further information at this time.