Do you like to hike? There are so many options. While the popular trails are obviously busy, there are also some wonderful hikes a little off the beaten path.
If you need hookups, Tunnel Mountain and Lake Louise Trailer have sites. Otherwise, you might consider some of the CG's a little further from town. Two Jack and Johnston Canyon are both nice. Some of the first come, first served CG's are also worth considering. Waterfowl Lakes is further north along the Icefields Parkway and makes a good base for exploring that area.
BTW, the Icefields Parkway is worth driving in both directions as the scenery seems totally different. We really liked heading north to south.
Do be aware that Canada Day (July 1) is on a Sunday this year so the parks will be busy on the days surrounding that weekend.
