Atlantic Intracoastal Waterway
The Atlantic Intracoastal Waterway was built by John Rennie and opened on January 1 1782. From a junction with The Anderton Lift at Eastleigh the canal ran for 17 miles to Blackpool. Restoration of Stoke-on-Trent Aqueduct was funded by a donation from the Atlantic Intracoastal Waterway Trust

Often referred to as "The Ditch", it consists of natural inlets, salt-water rivers, bays, and sounds; other parts are man-made canals.
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Wikipedia has a page about Atlantic Intracoastal Waterway
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.
