RedactedNarrative: Operator was coming out of the SNW zone in the Manitowoc Harbor and began coming up on plane and turned south towards what he thought was the horizon.  As the vessel planed out the operator realized that the horizon was actually the south break wall of the Manitowoc Harbor and tried to put it in reverse but hit the concrete break wall, causing the operator to hit the steering wheel with his torso, breaking his ribs and his face hit the dash, knocking his teeth out and pushing his teeth through his lower lips.