From July 6-9, my husband and I are renting a car to travel from Denver to go through Grand Tetons National Park, Yellowstone, Cody, and maybe Hot Springs State Park. Is it too much to fit in? I was thinking we could drive to Rock Springs the first day. But since there's nothing around there we're interested in, perhaps we should go further towards Jackson Hole? We can't leave Denver until 10:00 am.