What's at the bottom of the cliff? Water or some kind of relatively soft landing? Or hard, jagged rocks?
If the answer to the above question was 'Water or some kind of relatively soft, safe landing' then my answer would be yes. I think doing things like base-jumping and parachuting sounds like a lot of fun and as long as we land safely into the water or soft landing, then I don't mind.
However, if it's 'hard, jagged rocks' then my answer would be no, I'm afraid.