(NOTE : MY FIRST EXPLOIT, YES ITS USELESS, BUT I DONT CARE !)
First, download SpeederXP.
At full speed you can go incredibly fast.. (dont use this in front of people, or in popular places.) Start at Ratchet (I did this on horde) turn on 20000 speed and press apply, make sure noone is around you and then take off. Get about 200 feet out right before you start getting the fatigue meter and swim down the coast. When you get to Theramore start heading east.
Look on my little picture here. Where the pointer showing my guy, thats where you wanna go. When you get there there'll be something that looks like this.
There is no fatigue, no breath, no anything. You can just chill.
Purpose : To a'splore! Also, i tried to go to the whirlwind thingy and thats what i found. This tutorial is nice because it'll show you how to get to the edge of the world and ocean on a public server. (GM island anyone -- if we could find it) Another funny thing is that i was level 18 and i got the Silithus flight path...!
Also : Dont go past that land mass (east of it) you'll float in the air and have fatigue till you die, you cant get down loll.