We are flying into SLC the end of may and headed to West Yellowstone for a week. We are staying in West Yellowstone, but would love advice on best route and things to see along the way. Our initial thought is to stay one day in Grand Teton on way up and way back to break up the drive and see more scenery. All suggestions are greatly appreciated.... best routes, best local attractions to take in, unique off-the-beaten-path things, etc. our kids are 12 year old boy and 8 year old girl.