The Great Loop is a continuous waterway one can traverse that includes a little bit of the Atlantic, Gulf Intracoastal Waterways, the Great Lakes, Canadian Heritage Canals, and the inland rivers of America's heartland. Once the journey is complete, you are an official "Looper."
There are some requirements. They include a great amount of time, a boat with less than a five foot draft to get you down those inland waterways and, of course, NOAA nautical charts and a NOAA radio. Along the way, you can visit a number of National Marine Sanctuaries and National Estuarine Research Reserves.
Original article: The Great Loop: Circumnavigating Eastern North America by Boat [Feature]