Water trails (also known as blueways) are marked routes on navigable waterway such as rivers, lakes, canals, and coastlines for recreational use.
They allow access to waterways for non-motorized boats and sometimes motorized vessels, inner tubes, and other craft.
Water trails not only require suitable access points and take-outs for exit but also provide places ashore to camp and picnic or other facilities for boaters.
In the United States, many water trails are assisted by the National Park Service.
[3] Recreational use of water trails is a form of ecotourism sometimes called "paddle tourism".