RedactedNarrative: Operator was operating a Tracker 288 Sport model fiberglass vessel-bearing TX 6646 JX on Toledo Bend Lake located in Sabine Parish.  Operator had 8 total passengers with two passengers tubing behind the vessel on separate tubes.  While towing the two behind the vessel, Tuber1 fell off his tube and into the water.  Operator then began negotiating the vessel into a turn attempting to return to Tuber1.  While doing so, Operator made too wide of a turn, putting his second tuber, Tuber2, too close to the shoreline.  Tuber2 then struck a group of cypress trees approximately 15-20 feet from dry shoreline.  Operator and passengers from his vessel the assisted Tuber2.  Bystanders from the shore were able to assist and help place Tuber2 in a secondary vessel and transport her back to shore.  Once transported by Air Med Care to L.S.U. Hospital located in Shreveport, LA, where it was learned that she suffered from broken femur, fractured pelvis, and fractured coccyx.  Agents then interviewed and questioned the passengers and witnesses.  After concluding interviews, operator was issued a citation for LRS 14:99-Reckless operation of a watercraft.  No other injuries occurred to any other passengers during the accident with all P.F.D. properly being worn and used.  No alcohol or drug impairment is suspected to be a factor in the accident.