I agree with Dave and Dwayne that climbing the Falls is much too risky with a child strapped to you. If you want to see the Falls, one alternative might be for you, while transporting baby, to walk up the stairs alongside them. That is, if your husband is comfortable watching the other three kids on the climb -- and I would be concerned about the 5-year-old, too. I much prefer your idea of touring the town, seeing the school, etc. with a certified guide.