go to route 128 on the left side and dive. go into the passage way and get to Maxie/Archie and beat him, then go out side the cave or follow Maxie/Archie out youll meet steven
its actually steven who gets you into the cave of origin, and Wallace can be found inside
you get it in the ice cave befor you enter blackthorn city . u probably skipped like i did once
In Johto, you get in Dark Cave, in Sinnoh Mt. Coronet, Kanto one of the routes, and in Hoenn, you can find in the cave where you meet Steven. Hope this helps.
go to solaceon town there is a cave to the right of this town known as solaceon ruins enter the cave and you will find unowns
Go on the old guys boat and go to Dewford. Go the the Granite cave and get the Flash from the hiker. Teach it to a Pokemon and wander around the cave until you find Steven.
find kyogre groudon and rayquaza go up to them. thengo to sotopolis talk to steven then your in
You can find Steven near the gym is Sootoplis City. When you find him, he will take you to the cave of origin.
its actually steven who gets you into the cave of origin, and Wallace can be found inside
go first to the seafloor cavern and defeat Archie after that you will go out of there.theres a route there where big white on route i the west and use dive find your way to the cave(its easy)enter it use dive now your in sootopolis city talk to steven he will guide you to the cave of origin to make easier use flash.
go to metior falls and find steven he will ask you a batlle if you win go to granite cave you will see walace he will gave tou a feebas
First you must find the underwater cave where groudon is and beat the team magma leader to send groudon to the cave of origin in sootopolis. Then you go back to sootopolis and you meet steven and the eighth gym leader Wallace up the path just to the right of the pokemart. Next you enter the cave of origin and battle groudon deep inside (save right after entering the room groudons in because you are taken to battle groudon when you get about five steps towards him). Try to catch groudon without using your master ball and exit the cave. After that, go to the gym to talk to steven outside of it and then he leaves and you can enter the gym. GOOD LUCK!!
You get it after seeing Groudon and Kyogre fight. Steven will lead you to the Cave of Origin. Go deeper into the cave and you will need HM Flash to proceed. You will find HM 07 there.
go to stoopolis and enter the cave of origin there you will find a two entrance at the last room of the cave. enter the left entrance and go straight there you will find two pokeball. one will be celebi and other will be dust stone.
It is south of i think dewford it is called metiorite falls. Go up the water fall and go through the cave you'll find steven and you and him can batlle. good luck
after you beat the elite 4 and the champ Wallace/Steven (depends on the game) go to the weather center and the scientist dude will tell you that its raining on a certain route go to that route and find a dive spot that was not there originally once you find it use dive there should be a cave if you follow the path under water enter the cave go up. you better save you can only see him once(if you have sapphire you catch him in the cave of origin groudon for ruby
after you got the red orb for Ruby and the blue orb for Sapphire you go beat team magma for ruby team aqua for sapphire and both for emerald. then you get dive from Steven in mosdeep city and beat the 7th gym. go go to some white stones on route 126. and if you dive down you come to Sootopolis city and that's where the cave of origin is.
In order to find the Cave of Origine in Pokemon Emerald you go to the town square and go east. you will find a field with a tree in it. near the tree cast out your onix and have him dig. when he gets a good hole going jump in it. you will be in the crystal cavern. go under the waterfall at the end of the cavern to enter the Cave of Origin.