you have to keep on going up the floors
At the very top of Sky Pillar.
in sootopolis city
I don't think there is one. There isn't a Sky Pillar, but there is a Spear Pillar. It's on top of Mt. Coronet.
First find the sky pillar and get 2 the top and bring your Mach bike to get to the top. The sky pillar is after Pacifidlog town and before the enterance to Sootopolis city. When you get to the top of the sky pillar rayquaza will be at the top but it will fly away when you see it. But when the two legendary from ruby and sapphire stop fighting go back to the sky pillar and catch rayquaza.
It is it the top of Sky Pillar
Spear Pillar is at the top of Mt. Coronet (Sky Pillar, where you catch Rayquaza in Pokemon Ruby, Sapphire, and Emerald, does not appear in Platinum).
sky pillar near pacifilodge city. use surf and go to sky pillar. he is at the top you penises.
do the Pokemon leuge then talk to the weather dude and he will open two new places to fly to groudons cave and the sky pillar then fly to the sky pillar at the top raquazer awates
On top of Sky Pillar.
SKY PILLAR. Top few levels I guess.
You Find Him At the top of The Sky Pillar
You can capture rayquaza at the top of sky pillar.