Hello,
Was randomly flying around under Pandaria today, managed to fly to both Horde and Alliance shrines after I got under the world, many places to go with this. Apologies if this is a repost, could not find any using this spot.
1. Go to the entrance above Mogushan Palace instance entrance, where the archaeology daily guy is and the Phoenix Egg vendor is.
2. Mount up if you are not already and fly through the entrance and immediately once inside fly directly up through the roof, you will now be outside the map
( if you are engi you can use the Gravity Well instead )
3. Now to actually get out of there go to the back of that white area and mount up on a large mount i.e Black War Mammoth and spam jump while running at wall, be careful to stop running as soon as you get out as it's a short ledge. Some of the larger flying mounts also let you get out of the back.
Once out fly to wherever you wantMake sure you stay close to land, you will avoid a lot of DC's if not all, I've got quite far by flying close to the ground.
Can provide screens if needed.
Enjoy!