Now, for some reason Blizzard has made a world wide teleport at the bottom of the sea. This teleport takes you to the closest graveyard near you. It is working as intended, but... this can be a nifty tool if you are undead or you have some sort of underwater breathing buff on you.
Some areas are well known for their infamous gigantic space, and with only 1-2 graveyard. Well, if you find yourself near the ocean, and you need to get to one spot and would do it rather hastily, then take advantage of this.
Swim to the bottom of the ocean, this may take 30 seconds of swimming straight down, once you are about 5 yards from the bottom you will die, be teleported to a graveyard, then you will be able to instantly res there, wihout getting the de-buff. This can shorten your trip by several minutes.
Wouldn't call this an exploit, but couldn't really decide where to post it.
EDIT: Alright, I have just tested this out with a human, with no buffs, level one. Here is what happened. I swam to the bottom. YOU DO DIE. But, you click release, you will end up at the graveyard, and then you will get "resurrect now" at the graveyard, so you will have no 15 minute de-buff of Res. Sickness. HERE IS THE VIDEO.
Don't worry, the link is safe, it is just some P2P video / photo share site, like flickr... enjoy!
DropShots.com
So as seen above, it is a nice little trick.
Anyways just a quick tip from me to you.