Well by doing this you will get all these achievements within 5 seconds:
A Quick Escape
So Much Fun, I Did It Twice
Plop!
Are You Nuts!
Lovers Leap
I Hope This is Just Water
I Wish I had a Barrel
Falling for Fortune
High Diver + Title
The only reason this works because i BELIEVE all of them are based on the height you jump from and the zone you are in, and you are not in a zone when you fall from these coords..
You need a hack that you can set your own coordinates (i used MMONinja), just set your coords to 1, 1, 2000 (x,y,z)
Now just wait for your character to fall and congratz I had to do it twice to make sure I got all the achievements. ENJOY!
EDIT: Does not work in either starting zone, you will fall and die, but i did find some cool random buildings
Edit2: I just realized you get the titles "the daredevil" "basejumper" and of course "high diver"