People love an adrenaline rush, which is why we play extreme sports and go bulk shopping. Go big with this Groupon. $70 for a High-Course Challenge Aerial Trekking Course for Two ($130 Value) Adventureworks's team of skilled adventurers guide climbers of all experience levels through the forested high-course challenge. Over the course of two hours, pairs gradually ascend catwalks and intricate rope webs suspended among towering trees and vibrant green foliage. Adventuring pairs encounter different challenges at each section and pass frequent points where they can exit in the event a passing bird offers them a lift. As members of the Association for Experiential Education and the American Society for Training and Development, the adept staff members at Adventureworks draw on their extensive background in fitness training.