My best friend and I have zip lined previously but nothing compared to Flight Linz in Bootleg Canyon. We will return next year when we come back to Vegas to visit our money. The experienced staff is very friendly and helpful. Even there admittedly bad jokes are well thought out as you take the bus ride up to the drop off point.
Bring sunglasses and good shoes and comfortable clothes for hiking. Your Flight Linz guides provide sunscreen, cold water and constant encouragement. This is thee best value tour you can take and the payback is priceless. Watching the videos gives you a small taste of your experience. It's a 30-40 minute drive from the Strip or they will pick you up at the Excalibur.
Also, highly recommend renting the "go camera". Yes, it also records your audio outbursts!