Seriously looking at the Wonderland: Yellowstone in Winter tour. We would want to arrive a day early, but are concerned that there may not be enough to do to fill the time - you can only spend so much time in the hot springs pool. I know there is a spa and you can go horseback riding - neither of which appeals to my hubby. Is there anything else that we could do in the area that doesn’t require a car? Thanks in advance.