go to the jagged pass and it should still be there
after getting into team magmas hideout
go to slateport and interrupt capt stern interview and then go to team aquas hideout and beat their leader after he wakes up kyogre and then surf to mossdeep city and defeat the twin gym leaders
you have to catch groundon
you battle them
a master ball
near team aquas hideout in sapphire. but in emerald it is on MT. chimeny
it is in pacifidlog town i think
it is at mt chimney
north east of lilycove
You go to mt chimny and then a rock will shak and resemble a hole and that's team magmas hideout . But I think you need a mechamp to get in.
there hideout is by lilycove city and it closes up in end of game:)
You have to beat team aquas leader. His red orb will glow and kyogre will wake up.