RedactedNarrative: Vessel 1 was southbound pulling a skier on the main portion of the lake just south of dire creek on broken bow lake.
  
  Vessel 1 hit a submerged sand bar and came to a sudden stop.  Passenger 1 was standing at the back of vessel 1 when it stopped.  Passenger 1 travelled toward the bow of the boat and struck her back on the windshield.  Passenger 4 was the one that was being towed.  Area of the accident was approx 612 ft east of dire creek south point and approx 18918 ft north of the spillway and approx 22839 ft n or the dam.