An aquatic vehicle is a type of transportation designed to operate on or under water. This category includes various crafts such as boats, submarines, and jet skis, which are used for recreation, transportation, or research. Aquatic vehicles can be powered by engines, sails, or human effort, depending on their design and purpose. These vehicles are essential for activities like fishing, tourism, and marine exploration. They can vary greatly in size and complexity, from small canoes to large cargo ships. Innovations in technology continue to enhance the efficiency and capabilities of aquatic vehicles, making them safer and more environmentally friendly.