<P> The Intracoastal Waterway ( ICW ) is a 3,000 - mile ( 4,800 km ) inland waterway along the Atlantic and Gulf of Mexico coasts of the United States , running from Boston , Massachusetts , southward along the Atlantic Seaboard and around the southern tip of Florida , then following the Gulf Coast to Brownsville , Texas . Some sections of the waterway consist of natural inlets , saltwater rivers , bays , and sounds , while others are artificial canals . It provides a navigable route along its length without many of the hazards of travel on the open sea . </P>
<P> The Intracoastal Waterway ( ICW ) is a 3,000 - mile ( 4,800 km ) inland waterway along the Atlantic and Gulf of Mexico coasts of the United States , running from Boston , Massachusetts , southward along the Atlantic Seaboard and around the southern tip of Florida , then following the Gulf Coast to Brownsville , Texas . Some sections of the waterway consist of natural inlets , saltwater rivers , bays , and sounds , while others are artificial canals . It provides a navigable route along its length without many of the hazards of travel on the open sea . </P>
what are constructed waterways that connect natural waterways
what are constructed waterways that connect natural waterways
artificial canals
artificial canals