Jackson Hole Airport is a close drive to the wedding venue. Alternative options include Idaho Falls, Idaho (about a 2-hour drive) or Salt Lake City (about a 5-hour drive).
You can purchase continental breakfast to go. Poolside snacks and sandwiches can be purchased until 6pm weather permitting (closed on the day of the wedding--Saturday).
There is a spa, outdoor pool, indoor hot tub, fitness facilities, trails, tennis court, and horseback riding facilities. Check out their website for more details.
Yes, there is a shuttle service between Spring Creek Ranch and the Jackson airport and to/from the town of Jackson.