Four of us guys went to Catalina Island to celebrate the upcoming wedding of one of our childhood friends. None of us had gone ziplining before but this was on the top of our list. The company was totally professional with safety meetings, helmets, quality equipment and double/triple/quadruple checking everything each time one of us would go. Kevin and Bill were our guides and it was a totally fun experience and if all their people are as good as them, I would definitely recommend this as the one thing you have to do when you go! We got lucky and were able to call and go on the same day, but they fill up and I'd recommend you get a reservation a few days in advance and plan the rest of your stuff around this particular experience!