Along with teaching celestial navigation in a local college since 1976, he has run charter and dive boats as well as salvage and towing operations. Other work experience includes boat building, landscaping, wood carving, building contractor,  sea turtle farming in the Cayman Islands, curator of "Theater of the Sea", and preaching the Word of God. Through his love for boating, and over 50 years experience on the water, he has worked with ministries and projects relating to missions, teaching youth sailing, humanitarian and hurricane relief and Bible distribution on the waters of the Atlantic and Caribbean. Marlin also currently serves as the President for the   Christian Boaters Association. His hobbies have included power and sailboat racing, astronomy, motorcycles, and flying. Seeing people turn their hearts to Jesus gives him the greatest pleasure.