RedactedNarrative: A 23' boat with 3 passengers was cruising in Broad Bay towards the Narrows at Sea Shore State Park at night.  They crashed in to Broad Bay Channel Marker #18 at approximately 40-45 MPH.  A citizen heard the crash from his residence (back yard) and responded with his boat to investigate and called 911.  All 3 occupants were juveniles (15-16 years old).  Two occupants were ejected from their seats and landed on the bow of the boat.  All 3 occupants were transported to the hospital.