Beat them.
To get to their base goto mt pyre and get a magma emblem for emerald
you have to go through a cave on mount chimney, when you get out, battle team magma and beat them, they will cancel their plans and all run away then go back to mount chimney and then you can ride the cable car.
At the top.
Google Pokemon sapphire walkthrough and search through a walkthrough
To get to Mount Chimney, you have to go to Slateport, go into the water museum, defeat Team Aqua, go to Fallarbor town, defeat team Magma and get the magma emblem, go back to the cable car and go up.
team magma is near the base of mt chimney and team aqua is off the coast of lilycove town
to get into team magmas hide out you must have the magma symbol!!!!!!!!!any other question just ask meIf u don't have the magma symbol then you get it on top of mount pyre. If u have got it all you have to do is go down mount chimney on the walking path and it should open up while your walking by!Good luck!
On Mt Chimney to find it you need a magma emblem which you will get on Mt Pyre.
No there isnt. in emerald the team magma base is there, but after that no
go to mt chimney and beat team magma/aqua, then go through fiery path and go to fallarbor town. Go west and go to Meteor Falls and beat team magma/aqua. Go back to mt chimney, the grunts won't be blocking the cable car, and you can go up. Go through jagged pass and go west when you get out
go to fallabor town then go east down until you find a cave go until you find to team magma goons talking to a scientist go to mt chimney the goons will not be there
To get to Mt. Chimney, you need to go to Route 112 via the Fiery Path on Route 111, and take the Cable Car. The first time round you will face either Team Aqua or Team Magma, version dependent, so make sure your Pokemon are fully healed. Hope this helps!
team magma's base is before or after the 6th gym it's always before the 7th gym then after you beat Maxie get out of there base in mt chimney(you need to go to the top of mt pyre to get the magma emblem and go mt chimney to open a hole where that magma grunt was)then go to slateport to that submarine explorer place then team aqua steals the sub.