About Professional Mariner Magazine: Professional Mariner Magazine provides the most authoritative information on the commercial and military vessels that sail North America's oceans, coastal waters, inland rivers, and lakes. Only Professional Mariner gives you all the essential information you need to advance your maritime business or career - including the latest news and in-depth, investigative reporting on maritime casualties, regulations, legislation, shipbuilding, satety, technology, business/management issues, and more. So whether you're shore-side or underway, if you want ot stay up-to-date in the commercial maritime field, Professional Mariner Magazine is for you.