Mariners Learning System delivers Coast Guard-approved online courses to help you earn your OUPV/Six-Pack or Master Captain’s License from home. Whether you’re looking for “boating safety course online” or “USCG captain license exam prep,” their structured modules, quizzes, and official exams make passing seamless. Ideal for recreational boaters, commercial operators, and yacht crew alike. Study at your own pace with confidence—no classroom required. Trusted by thousands of mariners for accessible, accredited training that gets you on the water faster.