Crazy things to do...

Last year I was in Puerto Rico trying the worlds longest zipline called "The Monster".
Direct link: http://www.toroverdepr.com/monster.php

On my list is:
The Nevis Swing, New Zealand.
18.000 Ft Skydive, Santa Barbara (I have been there a couple of years ago, but the weather was bad and we never got to jump)

I need more things on my list... Have you tried anything big, crazy and funny, then please share and please remember to write where in the world it is, so I can plan my next big adventure :-)