Niagara falls isn't at the Capital But is there to do at the capital? Um, it's really special during winter. Once christmas is around, you have all those beautiful lights, once Janurary and Feburary, you have the longest skating... surface to go ice skating on. Eating beaver tails which was yummy (Don't worry, they arne't actually beaver tails, they're pasteries), and then you have the Winterlude. Kinda like a snow/winter festival. And, there tons of snow and ice sculpters, on the other side of the river theres a big park with slides made out of snow. And it's really magical. It's really a winter wonderland when you're a kid.
During the summer, you get this HUGE music festival. And of course Canada day is always packed on the streets of Ottawa.
I dunno, they may not seem to have much to do, there's plenty to do. You just gotta look for it.