City strait is a term used to describe a narrow waterway that flows through urban areas. Synonyms for this phrase include urban canal, city waterway, metropolis channel, inner harbor, and downtown river. Urban canals include man-made waterways that are essential in the transportation of goods and people in an urban setting. City waterways are a defining feature in many metropolitan areas and contribute to the overall charm and character of highly populated regions. The term metropolis channel refers to the channels that run through highly concentrated areas and play a crucial role in the lives of city dwellers. The inner harbor provides opportunities for commerce and attracts tourists to many urban areas. Finally, the downtown river is a term typically used interchangeably with city strait.