I was thinkin' I had posted last night, to say thanks for (most of : ) ) the suggestions so far. Some of them confirm my intentions to schedule things we were already considering, and some are all new thoughts. Guess I started a post and then got detoured.

We've spent some time in Toronto a couple of times, and really enjoy it, but will probably bypass in favor of new options for this trip.
I found Boldt Castle on Thousand Island information just before Dorothy P. referred to it; I think that's one that definitely goes on the itenerary.

I sure appreciate Repaires's advice; I always try to be respectful of local culture.
                           Dean