This introductory 2-day class is designed for recreational boaters and professional mariners who are looking to better understand the way common systems work on board vessels. Over the two days, we take a holistic look at the systems that are found on most boats with particular focus on how they work, what keeps them running, and common mis-steps to avoid. We delve further into each system by providing both lecture and hands-on experience actually working on a few systems that are common to most boats.