A merchant ship, merchant vessel, trading vessel, or merchantman is a watercraft that transports cargo or carries passengers for hire. This is in contrast to pleasure craft, which are used for persona
A body of water, such as a canal, lake, reservoirs, or river, is navigable if it is calm, deep, and wide enough for a watercraft to pass safely. Navigability is also referred to in the broader context
Navigation markers, entrance of Fremantle harbour and the Swan River, Western Australia