Day trips

I have been to Perth, Smiths Falls, Westport, Almonte, Kingston, Kemptville and Brockbille, Gananoque, Ogdensburg, Missisippi Mills, Arnprior, Montebello, Mont Tremblant, Prince Edward Island....Toronto and a bunch of towns over there.

I would like recomendations for other day or weekend trips. I would like to visit new towns, and dicover other landmarks.....

What are the hidden secrets of Ontario?