Okay so first of all you need two chairs, i used Nats chair and TCG chair. Mushroom chair should also work.
1. Plant first chair on the right top of the fence. (DMF Tiger works also)
2. Mount it to get over
3. Go stand about 3rd bottom step and plant another chair
4. Spam click the chair and walk forward
If you get ported back in then just repeat.
You can now cap mines if you wish but i would not recommend it.
Edit: Ohh this is for horde, alliance probably has their own spots.
Edit 2: 5.4.8 they moved the teleport area tiny amount making it easier, the teleport wall is about the spot where u see my the green murloc standing.
METHOD #2
Arathi Basin:
1. Go against the gate and drop a sandbox tiger.
2. Once outside the gate, drop another sandbox tiger into the zone that ports you.
3. Run into the porting zone and at the last second hop onto the sandbox tiger.
4. GG
Deepwind Gorge:
1. Go against the gate and drop a sandbox tiger.
2. Once outside the gate, drop another sandbox tiger at the end of the wooden steps.
3. Run into the porting zone and at the last second hop onto the sandbox tiger.
4. GG