We are visiting Niagara Falls for my upcoming honeymoon.
Thats great! The falls actually form the southern end of the Niagara Gorge in which I have been too 3 times. 
I bet it's a beautiful view.
It is I have been to all three waterfalls which are the Horseshoe Falls, the American Falls and the Bridal Veil Falls. You should visit them all. 
I didn't know there were different waterfalls.
The Horseshoe Falls which is my most favorite is just on the border of the United States and Canada, The falls are separated by Goat Island
Very cool. What is on Goat Island?
Actually Goat Island has no residents at all, but is a popular place for tourists when visiting the falls on the U.S. side.