A waterway is any navigable body of water. A shipping route consists of one or several waterways. Waterways can include rivers, lakes, seas, oceans, and canals. In order for a waterway to be navigable, it must meet several criteria: \n* The waterway must be deep enough to allow the draft depth of the vessels using it; \n* The waterway must be wide enough to allow passage for the beam width of the vessels using it; \n* The waterway must be free of barriers to navigation such as waterfalls and rapids, or have a way around them (such as canal locks, boat lifts,etc.); \n* The current of the waterway must be mild enough to allow vessels to make headway. Vessels using waterways vary from small animal-drawn barges to immense ocean tankers and ocean liners, such as cruise ships.

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