Thinking of visiting!

Hi guys, I'm thinking of visiting Canada in the near future and would love any helpful info or tips that you may have.

I'm living in Australia and was wondering what the best time would be to visit? What you would recommend seeing? I'm thinking of december-march for travel, as I will be on holidays from study.

The aussie and canadian dollar is pretty much the same as far as I know. What are the typical food prices like?

Any help would be appreciated :)