. and how do you get out of the tube if you get stuck in it i dont see an escape hatch?!

You Blind?

You aren't really 'in the air'... you are virtually 'free-falling' for about 2 seconds, but you ALWAYS have contact with the slide behind you. You don't 'crash down' at the bottom - it gently curves forward, so your feet are the first to feel it. If you don't follow the instructions of the operator, and you do SOMEHOW manage to drop without touching the slide (you aren't going to reach the bottom either way because there is a slight angle to the entire drop) - then your feet will take the first direction change, and then your arse. Your back is safe - so take off the skirt and ride the damn thing.