We took the Native American tour from East Glacier. The guide was awesome. The tour is narrated and we learned about the Native Americans, their hunting, how they built their teepees to withstand the wind, the wildlife and plant life and how they used the different plants for medicinal purposes. There were many stops along the tour to get out and take pictures. Very interesting! We took the 7.5 hour tour which only goes on the East Side up to the summit. You could then take the 1/2 day West Glacier Red bus tour a different day. We have done both the tour and have driven both sides. If you've never been, I would highly recommend the tours. There are so many stunning views and photo ops. Also the road is windy and the traffic on the weekends is bumper to bumper so you really have to pay attention. Can't look at the scenery and pay attention to the traffic at the same time!