RedactedNarrative: PASSENGERS OF VESSEL 1 WERE SWIMMING BEHIND THE SWIM PLATFORM OF VESSEL 1.  VICTIM 2 WHO WAS NOT WEARING A PFD (BUT HAD A SWIM NOODLE) WAS USING THE LADDER TO GET OUT OF THE WATER WHEN THEY BECAME UNCONSCIOUS AND FELL BACK INTO THE WATER.   WHILE ASSISTING VICTIM 2, VICTIM 3 BECAME UNCONSCIOUS.  VICTIM 3 WAS WEARING A PFD. WHILE VICTIMS 1, 4, 5 AND PASSENGER 2 WERE ATTEMPTING TO KEEP VICTIMS 2 AND 3 AFLOAT, VICTIM 1, WHO WAS NOT WEARING A PFD BUT HAD A SWIM NOODLE, BECAME UNCONSCIOUS AND WENT UNDER THE SURFACE. VICTIM 1 WAS PULLED ONTO THE SWIM PLATFORM OF VESSEL 1 WHERE CPR WAS PERFORMED. VICTIMS 2, 3, 4, AND 5 WERE TRANSPORTED TO THUNDERBAY COURTESY DOCK WHERE THEY WERE TRANSPORTED FOR TREATMENT BY EMS. VESSEL 1 HAD ITS GENERATORS RUNNING FROM THE TIME IT LEFT HARBOR VIEW MARINA. ALL VICTIMS WERE LOCATED NEAR THE SWIM PLATFORM LADDER WHICH IS NEAR THE GENERATORS EXHAUST.