RedactedNarrative: On June 27, 2017 at approximately 2:32 pm, V1 was pulling a group of youngsters on a 5-man tube about 450 ft south of the Iowa Regular Baptist Camp located at 1600 E Lake St. Ventura, IA 50482.  The pontoon belonged to the Camp and the operator was a camp counselor  for the summer. The victim & 2 other occupants fell off the tube which caused the victim to bump his head on the hip of another passenger.  The victim complained of some pain and a light headache after the incident so he was taken to the hospital and diagnosed with a slight concussion.  All 3 individuals on the tube were wearing life jackets.