It's missing one crucial component, which is walking the plank or some other fear of hights element where you have to physically walk (could be tightwalk rope or taking a massive step across a big gap or something along those lines or three deadly elevators that you have to cross in order not to fall).
I was also hoping to be able to steer while hand glinding ;p
All in all my favourite experience was Dual Rope crossing and least favourite gun hunt.
Edit: My friend also suggested zip line should have adjustable speed setting. He was expecting zip line to be much faster and seemed quite disappointed when it wasn't.