American Cruise Lines, Inc. does not guarantee departure point, termination point or any intermediate stop. Itineraries, schedules, routes, ships, and staterooms are always subject to change at any time without notice due to weather conditions, availability of docks, shoaling, river conditions, operation of locks, mechanicals, or any other reason. The times and dates of departure and arrival are also subject to change. Some Intracoastal Waterway cruises may travel coastwise at times. The Mississippi River between St. Paul and St. Louis has particularly fickle river conditions which may require itinerary modification.