#4

#4 To stand in a volcanic crater

most of you might think, that it could be dangerous.
and it is. but you just have to be careful an not to get to these "holes"

when i was in Tunisia some years ago, i visited a vulcano, too.
at first, it was a little bit scary. you can't know wether it is really safe. and it smelled horrible after sulfur (maybe you should hold on your breath) the first man was turning back after 5 m/ 16ft. when you stand in the crater (wheter there was no sulfur anymore or you got used to it) you probably shouldn't start thinking how easy your life could be ended. you feel little, very little standing there ;) 
sounds like advises...

but it is a impressive experience at all
yeah, i don't know how to describe it right - to appreciate it right.

i just think you have to make this experience by your own.
DO IT