I know that in 2017 enter to NPs are free. In 2008 on my trip to AK I drove from Banff to Jasper and stop to see Lake Louise. I did not camp in the NP and only stopped for lunch at Lake Louise. I do ...
Yes, that's what I remember too Yeti plus - we purchased a Canada Parks Pass in advance of our trips years back and went through a toll booth and had to show it then. Also had to show it when we camped at Two Jack, Lake Louise, and near Jasper at Whistlers. Didn't have to show it when we went to Takaka Falls or to Moran or Waterton, so we assumed that our one toll booth entry covered it all.