i haven played this game in a while but you find Rayquaza at the Top Floor of the Sky Pillar.Fly to Pacifidlog Town. Then use Surf to the right i think
You can't get Kyogre in Pokemon Ruby but you can get Kyogre in Pokemon emerald and sapphire and in ruby you only get groudon and rayquaza. In sapphire you get Kyogre and rayquaza and in emerald you can get groudon, Kyogre, and Rayquaza.
You can't get rayquaza in platinum you must migrate it from ruby, sapphire or emerald.
If Rayquaza flee'd from the Sky Pillar in Ruby/Sapphire there is no way to get another chance to fight him.
On top of Sky Pillar.
If you mean Rayquaza, then you can find it at Sky Pillar
you can find groudon, mew, mewtoo, rayquaza, kyogre...
I think its the same place you find him in Ruby and Saphire
go to the top of sky pillar and you will find him
regis groudon rayquaza latios and latias deoxys
you find it in sky pillar and it's not rayqueza it's rayquaza
You can't without hacking. or in sapphire ruby or emerald.
You can't find Rayquaza it in pokemon diamond, pearl, and platinum. You just migrate it in Pokemon Emerald, ruby and saphirer