RedactedNarrative: Vessel operator was disembarking passengers to go tubing with one passenger already on the tube.  As the second passenger attempted to get on the tube the first passenger slipped off into the water.  Vessel operator was aware that vessel in neutral still has an exposed propeller.   The victim was struck by the propeller blade in the lower left leg requiring medical attention.
NameOfBodyOfWater: Lake Carlsbad
NearestCityTown: Carlsbad                      