Hi it's me again I searched and searched for the sky pillar and I couldnt..

Fly to Pacificlog town and walk the top right near the house and use surf. Just stay on the top near the rocks and keep surfing right intill you see a two spot opening. Go through it and keep surfing up and eventually you will see a cave, go through it and you will be at the sky pillar. Hope I helped.

Right, well, before you do any of this, MAKE SURE YOU HAVE THE MACH BIKE. NOT THE ACRO BIKE. THIS IS VERY IMPORTANT. The mach one is the one that goes really fast, by the way, and the acro bike is the one that can do wheelies if you press and hold the (B) button. Then, go to Pacifidlog. Then surf north and then east following the barrier of rocks and stuff that you can't get past. You'll go past a pair of trainers right next to each other, and then two more trainers seperately. Just surf as close as you can to that wall. About then, the wall of rocks and stuff will have a gap in it. Go in the gap and follow the "path" of water that you can surf on and then you'll get to a kind of mountain thing. This is Sky Pillar. I can draw you a small, rough map if you like. . .


|^^^^^^^^^^^^^^^|
|^^^^^^^^^^^^^^^|
~~~~~~~~~~~~~|^^^^^"""""^^^^^|
~~~~~~~~~~~~~| \Sky Pillar\ |
~~~~~~~~~~~~~|\\\\\\\\\\\\\\\\\\|
~~~~~~~~~~~~~/ * |
~~~~/_________/ * /
~~~~| * * * * ____/
~~~~| * \
~~~~\__*___*__*__*_ * \
~~~~~~~~~~~~~~~~~\ * | ~~~~~ |~~~~~~~~
~~~~~~~~~~~~~~~~~| * | ~~~~~ | ~~~~~~~~
___________________/ * /_______/ ~~~~~~~
________| * * * * * $~~~~~~~~~~~~~~~~
Pacifidlog|~~~~~~~$$~~~~~~~~~~~~~~~~~~~~~
Town | $


~~~~~ = Water
* * * * * = Suggested Route
\\\\\\\\\\ = Ground
$ = Trainer


I hope this helps. The map is really bad but it took me like five minutes to draw. Except you'll have to go along a bit further.

In order to find it, you will need to beat the Elite Four at the Pokemon League, it won't unlock until then.