RedactedNarrative: Dispatch informed us that two individuals on an inflatable tube were being towed by a vessel and hit their heads together. At approximately 1315 hours we arrived and I observed a male sitting between two teenagers on a pontoon boat. 
  
  Subject said he and eight of his friends had been water tubing around 12:15 hours near the main channel of SML south of the residence. Subject said one of his friend's parents, Operator, was operating the pontoon boat (VA 2140 AX) with Victim1 sitting on the right side of the tube and victim2 sitting on the left side of the tube. 
  
  The tube was a large "Zoom 2" multi-purpose tow tube with multiple handles surrounding the edge and the inside. The tube was designed to hold two occupants. Subject said Operator drove the pontoon boat over a large wake to allow the tube to get some air when the tube turned over clockwise. Subject said the back of Victim2' head hit the area of Victim1's left eye. Subject said both Victim1 and Victim2 did not lose consciousness and needed assistance back into the vessel. 
  
  Subject said Victim1 started complaining of head and neck pain. Victim2 sustained a small laceration to the back of the right side of his head and told everyone on board he was alright. Operator drove the vessel back to the dock where they called 911. Subject said both Victim1 and Victim2 were wearing a Type III Coast Guard Approved life jacket at the time of the accident.