My daughters and I completed all 5 courses, and we had a great time. We expected that each course would be a little harder than the previous ones, but they were all relatively easy except the last one. The 5th course was much, much more physically demanding than the others because it required a great deal of upper body strength. The Treeumph reps told us it would take about 3 hours to finish all five courses. We finished in approximately 1.5 hours, including the safety training at the beginning. The guides do an excellent job of training patrons to be safe, the equipment and structures are well-maintained, and there are plenty of staff patrolling the grounds to help anyone if needed.