1. Denver: 6-Zipline Rocky Mountains Adventure Tour
If you are traveling in or near Denver, Colorado and you like a little thrill and adventure, then this Rocky Mountain Zipline Adventure Tour is for you. And, at only 30 minutes from downtown, it's the closest zip line course to Denver. Nestled in a Rocky Mountain pine forest, at an elevation of over 8,000 feet (about 2,500 meters), you will fly at speeds of up to 50mph (75kph) and 200ft (about 75 meters) high on zip lines, which altogether total over 6,000 feet (2,000 meters) in length. You’ll soar through pine forests and over mountain meadows. It is a fantastic way to enjoy some fresh air, see some magnificent Rocky Mountain views, and have a whole lot of fun.