Niagara Falls tours from New York come in three lengths, and the difference is what you get to see, not how much time you get at the falls. 2-day tours stay overnight near the falls, which is what makes the evening illumination possible, and they stop at Watkins Glen State Park and the Corning Museum of Glass along the way. 3- and 4-day itineraries continue to Washington DC, Philadelphia or Toronto instead of adding time at Niagara. The boat and walkway alternate by season: Maid of the Mist runs in summer, Cave of the Winds in winter. Pickup points include Manhattan, Flushing, Brooklyn and New Jersey.