Definitely something we had to see before leaving. (I'd been once before, but I appreciate things so much differently now from when I was a child.) And it turned out to be an awesome trip. The weather was great, I don't remember getting lost, and the views are totally worth it.
Gorgeous.
We did the whole "Cave of the Winds" adventure and loved it.
And we strolled over to Canada to check out their view
(which is better in a lot of ways).
But America made us pay 50 cents each to come back!
Bogus, if you ask me.