From Banff, like others have said, the Icefields parkway is awesome. Don't miss it. Take the glacier tour
, it's a good time.
Lake Louise is one of those
places, worth the stop.
If Glacier National Park is on your radar, the Going to the Sun road is mighty.
The biggest thing I can recommend is, bring patience. Mid July will be full blown tourist season, motor-homes and tour buses galore.
Also, it'll be colder than you think July should be.
Enjoy the ride!