there are so many attractions here at Niagria Falls, it can be difficult to see them all. from our experience we would recommend the following. by the city pass if you want to do the following. 1 lady of the mist boat tour. 2 the aquarium. 3 the children science museum. 4 the in town trolley. 5 the cave of the winds. if you do not have time to do several do not by the pass pay for the individual tickets. there is free parking at dusk to see the waterfalls. the power station for 9, 10 and 12 year olds was a fantastic experience. plenty of hands on exhibits, friendly staff and great Views.