So I searched a little bit and didnt find anything like this,
The thing here is that you can walljump your way up to a place in the horde base where you "can't" be hit by melee's. In other words, not useful for melees...
First, the picture to give you an impression of where it is;
Basically what you do is run forward, while jumping...
As we all know, there is no such thing as "round objects" in wow, everything is made out of squares. Look at the middle of that pole, it will be almost like a line up to the top of it, aim straight on that line, then start jumping, and before you know it, you will be at the top
glnhf being unreachable by melees
(I suck at explaining, try it out and you will see how its done pretty fast)