The freshwater ports of the Great Lakes and St. Lawrence River are ready to welcome cruise vessels and their passengers throughout the spring, summer and fall. Luxury cruise itineraries include stops at unique North American ports, rich with history, art and culture and rugged natural beauty. Passengers explore destinations with the nostalgic appeal of Mackinac Island and the urban energy of cities like Cleveland OH, Muskegon MI, Milwaukee and Green Bay WI, and Duluth, MN.