This isn’t specifically about Niagara Falls, but the information is pertinent.
From the Niagara Falls Review:
A summer of record oil prices, a strong Canadian dollar and a slowing world economy are creating a “perfect storm” that’s putting a dent in Canada’s tourism market this summer, industry officials say.
Canada’s three major tourist destinations – Toronto, Montreal and Vancouver – all reported noticeable declines in visitors in July, and experts say it’s because of a myriad of factors.