RedactedNarrative: The operator was pulling into the Wood Creek area when the bow of boat a struck submerged rock.  The operator said the speed was approximately 28 MPH.  This caused a hole in the hull starting at the bow of the boat.  It is approximately 4 inches wide by 4 feet long.  The impact also damaged the prop.  Upon impact two passengers were ejected.  No injuries were reported.  PFDs were in the boat but not worn.