RedactedNarrative: I, Game Warden was patrolling Lake Mead National Recreation area on May 19, 2018, National Park Service dispatch informed patrol units of a vessel accident that occurred in the Virgin Basin. The vessel was currently in a slip at the Callville Bay courtesy dock, there was one injured individual, and at this time the extent of the injuries was unknown.  At approximately 1315 I responded to the scene with NPS Rangers. 
  
  I arrived to find one individual lying in the boat on the seat.  Victim was complaining of pain in her lower chest upper abdomen area. There were no signs of any external injuries. NPS Rangers attended to victim on scene establishing baseline vitals. Community Ambulance was asked to respond for transport. 
  
  Operator was operating the vessel, a 22'' Larson, towing his four children on a tube.  Subject1 was observing the four individuals on the tube.  Operator stated that he was operating the vessel between 25-30 mph while under tow. Operator stated that there were a number of vessels in the area, but he did not feel it was unsafe to tow the tube. 
  
  Subject1 stated she was observing her children on the tube when the tube hit a large wake from another vessel. Upon hitting the wake all four individuals flew off the tube, when the individuals landed, Tuber1 landed on Victim. 
  
  Tuber1 stated that after landing on Victim, she noticed Victim having difficulty breathing. Tuber1 attended to Victim. Tuber1 loosened Victim''s life jacket to help her breathe, but did not take it off.  
  Operator proceeded to pick up the individuals in the water, was informed of Victim''s condition and operated the vessel to Callville Bay. 
  
  The vessel had current registration and all necessary safety equipment. All personal flotation devices on board were in adequate condition and Coast Guard approved. 
  
  Upon questioning Operator, he stated that he had two beers earlier in the day. I performed the Seated Field Sobriety Test.  Upon administering the test I noticed four clues on HGN, 6 clues finger to nose, 1 clue on palm pat, and 0 clues on hand coordination.  PBT was not administered. 
  Victim was transported to St. Rose Sienna Hospital, chest x-ray and bloodwork was completed. Victim was released later that evening with no indications of internal injuries.
  