Our group included two grandsons, ages 11 and 13, my wife and I, and our son and daughter-in-law. At 77, it was a completely new experience for me and I had some apprehension. However, that quickly disappeared as our hosts competently demonstrated the procedure and then individually guided use through our first short ride. After that I was ready and looking forward to the seven lines. I had no discomfort at all being in the harness and suspended from the zipline. Thank you Denali Zipline for a wonderful experience!