Maxie will be in the tunnel in Mt Chimney for Emerald.
he is hard use revive to your pokemon....................
you have to go to team magmas base and deafeat there leader in a battle.
You use it to get groundon activated
To get past the boulders you have to let one of your Pokemon to learn the move strength.
you have to catch groundon
after getting into team magmas hideout
a master ball
Use Strength.
Go through the jagged path and go through the cave opening u should be in team magmas base
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.