I've fixed your title. In the future, do not post one-word titles. Give some idea of what people are entering the thread to see. Future threads with "ptr" or "help" will just be locked.
The isle of thunder isn't available yet as far as I know. There is a portal but there is also a bug that doesn't let you interact with portals or mailboxes etc so you can't click on it. Only thing that I seen available was the Isle of Giants which is north of Kun Lai summit