As a boat mechanic, you install, repair, and replace parts for marine vessels. In this role, you may service complex mechanical systems, swim under or around a boat to inspect it, document all inspections and test results, and explain repair procedures to customers. Boat mechanics work with a variety of different types of systems and equipment, including engine, electrical, and hydraulic systems, so flexibility and the ability to remember the correct procedures for each type of system is crucial to success in this role. Fulfilling the responsibilities and duties of a boat mechanic requires meeting any qualifications to work on particular types of boats, mechanic skills, physical stamina, and a keen eye for detail.