The Columbia Icefield’s Athabasca Glacier ride in Jasper National Park is a fun-for-the-whole-family attraction that is worth the trip from Banff National Park or if staying in Jasper townsite.
Here’s a picture from inside one of the snocoach Ice Explorer buses that ride on the Athabasca Glacier.
While the ride is relatively stable, there is a spot with an incline and a little bit of rocking. That is around when I took this photo.
Here’s what the Ice Explorer looks like from the outside: