you will find team aqua in the under water cavern near the dive point in sootopolis
in the back of the base, but they get away with it.
team aqua and team magma, u have to beat them both as opposed to ruby and Sapphire where u only have to beat the team that is the same color of your game(ruby=magma)(Sapphire=aqua)
The Team Aqua boss is in the Team Aqua Hideout northeast of Lilycove City. You will need the HM move Surf to reach the hideout.
At a cave under water in route 128 :)
Go to the submarine and press B. You'll notice you can get up there. If you are above, you'll need to explore a cave with team aqua in it.
it is in team aqua's base (the one where they had the submarine)
you will find team aqua in the under water cavern near the dive point in sootopolis
Go back to Slateport town. Inside the ferry building, you will find captain stern and the submarine being robbed by Team Aqua.
In the bay
You can find team aqua's hideout in the east side of Lilycove City in Pokémon Sapphire.
there is no team aqua on ruby. Aqua is only on Sapphire and emerald. :) :) :) :) :) :) :) :)
No, you cannot be a member of Team Aqua / Team Magma in Sapphire.
In the aqua's hideout
every where team aqua is or in snoop dogs house.
After you find the submarine you use dive up to the surface.
there a dive area and once you dive there, there youll find the submarine but you really need to look. the entrabce is like entering a cave underwater