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
after getting into team magmas hideout
You r suppose to find groudon and battle maxie
you can catch one in team magmas hideout
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.
You don't get it in Sapphire, only Ruby and Emerald
a master ball
it is at mt chimney
team magmas hideout is where you go down from the cable car, east of lavaridge. aqua is a surf north away from lilycove or mossdeep, i forgot sorry.
because there is a team magmas hideout near lavaridg town first go there with the help of cable car in the you will find a cave go there search for there boss
There is a master ball in the Team Magma's hideout in Pokémon Ruby Sapphire, and Emerald. Look in the Hoenn region for the Team Magma's base of operations.
you have to catch groundon
north east of lilycove