Picking the right course... There are many options when it comes to challenge courses; ...which one is right for you? Tree Courses:  Pole Courses:  Indoor Courses:  Climbing Towers: Climbing towers are a great central point to any course. While aesthetically pleasing, they also offer a platform for many other elements, such as a zip line starting point or an ending to high course elements. A favorite for young and old alike- offering challenges for both the novice to expert climber.