You don't need the beaten path. Great city!
Take a tour to Niagra if you have never seen the falls, but other than that be sure to stay in the city. See the Harbor area, China Town and catch a show (or two). Mama Mia is the best! Maybe your hotel can get you tickets. The show has been sold out for months, but I got seats last minute when I went last month. Eaton Center for shopping. You can get anywhere on the subway and street car system. Sunday is only 7.50 (CD) for all day for up to four people on one pass. I charged almost everything to get the best conversion rate on my credit card.
CN tower gives you a good view of the city.
Enjoy yourselves.