This U.S. industry comprises establishments primarily engaged in providing water transportation of passengers in coastal waters, the Great Lakes System, or deep seas between ports of the United States, Puerto Rico, and United States island possessions and protectorates. Marine transportation establishments using the facilities of the St. Lawrence Seaway Authority Commission are considered to be using the Great Lakes Water Transportation System. Cross-References. Establishments primarily engaged in-- ? Providing inland water transportation of passengers on lakes, rivers or intracoastal waterways (except on the Great Lakes System)--are classified in U.S. Industry 483212, Inland Water Passenger Transportation; ? Providing scenic and sightseeing water transportation, such as harbor cruises--are classified in Industry 487210, Scenic and Sightseeing Transportation, Water; and ? Operating floating casinos (i.e., gambling cruises)--are classified in Industry 713210, Casinos (except Casino Hotels).