I'm pleased to hear they are enjoying their holiday despite missing Jasper, I'm just north of Jasper and still getting their smoke, along with our own fires. They probably were going to travel the spectacular Jasper to Banff highway through the Columbia Ice-fields.
We had a spell of 35c+ which added to the many already wildfires, still a few around my town, but most of the roads are open again so travelling is getting better which is good as we have the "Canadian Death Race" this weekend, it brings in over 1,000 world wide competitors, Google it and see our beautiful area.
I think they will tell you of the size and distances between cities, 6 time zones and the diverse scenery. It takes some getting used too.