A journey by sea is most commonly and formally referred to as a voyage. This term typically describes a long journey to a distant place, often involving an ocean crossing or a scientific expedition. Depending on the context, there are several other more specific terms used by mariners and travelers. A cruise refers specifically to a voyage taken for pleasure, often stopping at multiple ports of call. A passage usually refers to a specific segment of a trip or the act of crossing from one body of water to another (e.g., a "transatlantic passage"). Historically, a crossing was the standard term for a trip across a major ocean. For shorter, more functional trips, the term ferry or shuttle might be used. In more poetic or literary contexts, a sea journey might be called a sail or seafaring quest. Each of these terms carries a distinct nuance regarding the purpose, length, and nature of the maritime travel being undertaken.