warning: going under durotar will dc you, so i suggest keep it in org.
this is pretty useless considering there's already 1 million ways and this is probably a repost and already known (sorry if it is).
steps:
1. go to this spot: https://i.imgur.com/Q1AY8oD.jpg
2. mount up and run against the wall (try to find the right spot, part of your body, mount and most of your name should be embedded in the rock, this picture is a bad example (make sure you are on the left side of the cutoff) https://i.imgur.com/1UYA1Z4.jpg
3. run against the wall, then jump + dismount at the same time. this may take a few tries, but if successful you should glitch through the wall. you will probably fall (you won't die so dw), but if you don't fall, you can just mountup on the side. https://i.imgur.com/Zyo3VOa.jpg
and that's it. you CAN get to the WKM room from here, i believe.
https://i.imgur.com/WPMpUyl.jpg