Well, there's one thing neglected; all aetherial gates require you to walk/run there yourself. No piggy-back to those areas. And to be frank, getting to Scorpion Keep without getting owned by those Puroboros' hanging in the caves is pretty hard.

@Nephera: Probably that area was near where Coerthas may connect to Dravania, the area west/north-west to Coerthas. It will probably open up in future expansions.

And everything has a price; once you use up all your anima (100 is pretty easy to use up, believe it or not), get those comfortable walking shoes on.