Ok, this is a way to get behind the Greymane Wall, which is located in Silverpine Forest, just south of SFK.
Firstly, head over here... ( no coords, just look at mini map. sorry, [you] :[ )
...so that you end up here:
Wall jump around like this.
Walk over here...
...then over to here:
then wall jump some more kinda like so:
now walk, following the arrow:
and at this point, just jump down. i would recommend using a nogg pot or some other form of slow fall. personally, i use this.
and there you go. you can now see where Gilneas should be. and just a little secret: the map liez :O
and also, the lines i drew (especially for wall jumping) arent really that accurate. just throwing that out there.
yay for exploring.
there is a way to get out from behind the wall, but its kind of a bitch. ill post how to later maybe. its just wall jumping up the mountain side D: tres boring, if you ask me, [you]. g'day.