Spend some time on the Icefields Parkway, which runs from Banff north to Jasper NP, with Yoho NP in the middle, slightly to the west. Over the years Yoho has become our favorite of the three national parks, operated by Parks Canada. It is more laid back and less crowded, IMHO.
The town of Radium Hot Springs is well worth a few days camping. There are both private and government campgrounds in the immediate area. The govt one on the hill overlooking town has full hookups. A part of Kootenay NP I believe.
As you are no doubt aware there are two parks in the area with basically the same names, the Waterton Glacier NP which is a shared park of the US and Canada and the Canadian Glacier NP located west of Lake Louise. That entire area of Alberta and BC could be made into a park, as the scenery is just outstanding. I believe much of the area is Crown Land so not sure how they decided where to draw the park boundaries. A week in the area is nice, two or three weeks would be outstanding.