My wife and I are in the stages of planning a 10 day vacation 4 of those days visiting Yellowstone. This trip will be early in July. Will be heading to Yellowstone after visiting GTNP. Looking for suggestions for a 4 day itinerary. We are interested in staying in the park, price not an issue. Interested in seeing more wildlife than hot springs and geysers but certainly want to see Old Faithful.Looking for recommendations for short (2-5 miles round trip) but scenic hikes. We will eventually be flying back to Boston so any suggestions of best airport to fly out of would be helpful. Any suggestions would be greatly appreciated.