I am seeking some advice on how to spend our time in Yellowstone. We will be in the midst of an 18 day road trip (!) and are spending 3 nights in Yellowstone (followed by 3 nights in GTNP/Jackson). In Yellowstone we are spending one night at Old Faithful Inn, Canyon Lodge cabins, and Lake Yellowstone Hotel. We will be arriving from Salt Lake City hopefully by 1-2pm on day 1. Day 2 and 3 are all Yellowstone. We leave day 4 for GTNP/Jackson. We have 7:30 dinner reservations on Day 1 and 3 at Old Faithful Inn and Lake Yellowstone Hotel, respectively. We have 3 boys (12, 10, and 7) and are in pretty good shape ourselves. The boys are fairly active and adventurous but our middle child has aspergers and occasionally needs to take things at a different pace. He is also an encyclopedic learner and will love any and all educational opportunities. Thanks for any input and advice.