When are you planning this trip? This will give me a better idea of what festivals and city events you can hit.
Otherwise, a few that I would suggest not missing over here in my neck of the woods are:
-My fine city of Edmonton which is know as
Canadas Fesival City-The Rocky Mountains...
Camp if you can...You can drive right through
getting some stunning views and visiting the Columbia Ice Fields and Kyoto Lake-There is a highway that goes right through Canada called
The Yellowhead "Travelling the Yellowhead is a journey into history, with Indian encampments older than Egypt’s great pyramids, mighty rivers, pristine lakes, majestic mountains, forested parklands, ancient shrines and battle sites"
Those a few suggestions to get your feet wet...
Welcome to Canada!