There's so much to see, the whole area is like a big amusement park, so I'll stick to a few tips based on our experience. I think the visit to the White Water Walk is underrated. It is usually less busy than the other attractions and the elevator ride down to the dark and cool tunnel is as much fun for the kids as the one at the upstream Journey Behind the Falls. I don't recommend Voyage to the Falls (formerly Maid of the Mist) with a baby. You'll get soaked and the noise is thundering. On the other hand, the rainbow forming above our heads was beautiful. Kids can also watch the rainbow effect along the sidewalk along the river. They’re most impressed to see the falls when they're illuminated at night. As for the attractions along Clifton Hill, I think the non-interactive visits to the wax and horror museums are too short for the cost. We've always preferred the Guiness World of Records and the Ripley's Believe It or Not (note that some displays might disturb kids under 7). And we love BrickCity, the attraction filled with Lego-block constructions. I recommend you start the outing with a visit to the Niagara Falls Imax Theatre to watch the movie Miracles, Myths & Magic. The legends, accidents and stories of daredevils, which are re-enacted on the huge screen, shed a new light on the falls. To avoid the line-ups ask about the timed tickets you can buy in advance at most of the attractions.