I searched all over the web for information on the world’s fastest zip line and what I found was the Gravity Canyon which is in Taihape, New Zealand. I believe they are now closed due to the extreme nature of their zero gravity near free fall on a zip line, but here is a clip from a riders point of view on the zip line ride.
If you think it looks terrifying, it absolutely is. They also offer bungee jumping, which I’m definitely not a fan of. I feel like bungee jumping is the ultimate Teter Hang Up experience. Stretch out every one of those vertebrae, maybe add a few inches to your height. Although Gravity Canyon used to be super popular, it seems to have slowed to a halt because it’s now showing closed – but it really was one of the fastest zip line in the world in it’s hay day.