Jackson Hole may be nirvana for extreme athletes, but that doesn't mean the valley is lacking when it comes to club sport activities. There are two world renowned golf courses less than 15 minutes from town, and tennis courts scattered throughout the valley.We don't have to tell you what rarified mountain air does to a well-hit golf ball. But distance isn't the only thing you get when you arrive in Jackson Hole. There are a dozen courses within driving distance. Try the Jackson Hole Golf & Tennis Club at 5800 Spring Gulch Road in town, (307 734-8515; http://www.jhgtc.com), the Teton Pine Golf Club at 3450 Clubhouse Drive, (307 733-1733; http://www.tetonpines.com) and then there's In The Hole Golf, 970 W. Broadway, (307 734-8062). Swing away.