Marine vessels are watercraft designed for navigation on oceans, seas, and other bodies of water. They come in various types, including cargo ships, fishing boats, and passenger ferries, each serving specific purposes. These vessels can be powered by engines or sails and vary in size from small boats to large ships. The design of marine vessels is influenced by their intended use, with features that enhance stability, speed, and cargo capacity. Safety regulations and navigation technologies, such as GPS and radar, are essential for ensuring safe travel and efficient operation on the water.