Watercraft are vehicles designed for travel on water. They come in various forms, including boats, ships, and submarines. Watercraft can be powered by engines, sails, or human effort, and they serve many purposes, such as transportation, recreation, and fishing. Different types of watercraft are used in various environments. For example, fishing boats are often smaller and designed for shallow waters, while cargo ships are large vessels built to carry goods across oceans. Sailboats utilize wind for propulsion, while motorboats rely on engines for speed and maneuverability.