I found a way to go "outside instanced" Drak'Tharon Keep, so you can explore the area if you want, here is the guide:
When you get out to the place where you can look into the wild, position yourself like this: http://img143.imageshack.us/my.php?image=wowscrnshot112408232030fm3.jpg
Then go up the rail like this: http://img76.imageshack.us/my.php?image=wowscrnshot112408232030xu1.jpg
And move out, just keep walking till you hit a wall, dont be afraid to fall down as you can stand in the air on this part:
http://img357.imageshack.us/my.php?image=wowscrnshot112408232030fv4.jpg
Then just keep following the wall on the left like this:
http://img153.imageshack.us/my.php?image=wowscrnshot112408232030ai3.jpg
Then when you reach around this point:
http://img139.imageshack.us/my.php?image=wowscrnshot112408232030ke1.jpg
You should walk in a 90 degree to the left, like i didnt do in this pic (:P)
and then you will begin to fall:
http://img153.imageshack.us/my.php?image=wowscrnshot112408232030lw8.jpg
And you should get down to around this spot:
Now as you see i died because i didnt aim for the water, but anyways, this should basicly be it.
http://img153.imageshack.us/my.php?image=wowscrnshot112408232031go8.jpg
Now go explore whats down there, or maybe go fish?
by Zylin