UNIT 1 WAS PULLING A PERSON ON A TUBE DOWN A SLIP AND SLIDE AND UP A RAMP FROM THE BANK AND CAUSING THE PERSON AND THE TUBE TO JUMP THE RAMP THROWING THE SUBJECT INTO THE WATER. THE MALE SUBJECT BROKE HIS BACK WHEN HE HIT THE WATER. THE SUBJECT WAS SENT TO OCONEE MEDICAL CENTER THEN TRANSFERRED TO GREENVILLE HOSPITAL. The subject did not complain of injuries until a few minutes of walking around on the shoreline.  He was then take to Oconee Med.