One activity that i think that is very interesting but never in my life i had done, and is the bungee. The Bungee is s extreme sport, and activity that involves jumping from a tall structure while connected to a large elastic rope. The tall structure is usually a fixed object, such as a building, bridge or crane, the idea is that the rope is connected with the ankle an permit that in the first of all you fall speed up and the the rope absorb the fall and then bounce.
I would like to do, because is a extreme experience and i think that could be a moment for to overcome a fear of heights, is a experience very exciting because is like how to fall the empty, but then when the elastic permit that you bounce is like fall again, i suposse that one lose the reference, and the first moment, the principal idea is put your mind in white, and the concentration for jump how the instructor say, and forget my fear.
Bus this sport too is considerate a danger sport, because exist something difficult that can produce the dead, for example exist the possibility how a bad fall or the rope can snaps, this think are very important but the energy that this activity coul produce ir better.
One day i hope to do bungee and fall over a river. :)