I went for a drive to St. Catharines today because I was giving a friend of mine a lift back to Guelph. Anyway, I left early so I could check out some roads I haven't been down before.
Here's a link to the route I took.
King Rd. in Burlington is short but pretty sweet and a good spot to rip as there isn't really any houses.
And all of the twisty roads inside the attached image are wicked, and just a few minutes south of St. Catharines. They are very much like roads up in cottage country, narrow, blind off camber crescents, all that fun stuff, and the pavement is good too. Be warned, they are narrow so approach corners cautiously there could be a big pick-up coming the other way