Five of us went on the zip line circuit. Three students, two of them in their later teens, one 10 year old, one guy in his 50's, and me, 70. The complete 12 line trek is geared for safety. Because of the very nature of the zip line, you are situated in high elevations, move down the lines at a significant pace, and you need to pay attention to the instructions regarding how to land whether you come in facing frontward or backward. But our two guides, Avery and Brian, both fully certified, were very knowledgeable and a joy to work with. We had an absolute blast; great fun! I even videoed some of the longer scenic runs!