Lodge at Sun Ranch
The Lodge at Sun Ranch, Montana's latest luxury eco-resort, is a Big Sky playground for grown-ups. Consider the stats: the property holds only 16 people, and has 26,000 acres for hiking, fishing, and horseback riding. One highlight is the "educamping" program, where guests learn about the lodge's sustainable practices, then spend the night in a canvas tent. Lest you think you'll be roughing it, the tent comes mounted on a wooden deck, with a queen-size bed and down comforters.