Big Sky’s seven ziplines have earned some national acclaim due mostly to the views but also to the diversity of options. Speed addicts will like the newer Adventure Ziplines, which consists of four high-speed lines accessed via a chairlift. Race a friend on the twin zipline. They’re 150 feet above the trees and 1,500 feet long. For a slower pace, try one of the three Nature Ziplines, all a mere 30-60 feet above the terrain and from 300-500 feet long.