Aqua Hideout Emerald · Dungeon

Map of Aqua Hideout in Pokémon Emerald — Aqua Hideout (in-game map)

Team Aqua's base is built into a sea cave on the eastern edge of Lilycove City and can only be reached by Surfing. Grunts block the way until Archie has gone to Slateport to steal the submarine; once you get inside, warp panels shuffle you around 1F, B1F and B2F. At the dock on B2F, Aqua Admin Matt holds you off while Archie escapes in the submarine towards a cave under the sea.

Wild Pokémon: None
Items: 4
Trainers: 9
HMs: Surf

Connects to: Lilycove City

Where Aqua Hideout is on the Hoenn map Aqua Hideout on the Hoenn map

Gift and special Pokémon

Electrode Lv. 30 · One-off encounter ×2 · B1F

Looks like an item ball until you touch it.

Wild Pokémon

No wild Pokémon here.

Trainers

Aqua Admin Matt B2F

Mightyena 34

Golbat 34

Prize ¥1,360

Trainer	Pokémon	Prize	Where
Team Aqua Grunt	Poochyena 32 PokéNav rematches (5) Rematch 1 · ¥620Zubat 31 Carvanha 31 Rematch 2 · ¥640Zubat 32 Rematch 3 · ¥640Carvanha 32 Rematch 4 · ¥640Carvanha 32 Rematch 5 · ¥640Zubat 32	¥640	1F
Team Aqua Grunt	Zubat 31 Carvanha 31	¥620	B1F
Team Aqua Grunt	Zubat 32	¥640	B1F
Team Aqua Grunt	Carvanha 32	¥640	B1F
Team Aqua Grunt	Poochyena 31 Zubat 31	¥620	B1F
Team Aqua Grunt	Carvanha 32	¥640	B2F
Team Aqua Grunt	Zubat 32	¥640	B2F
Team Aqua Grunt	Carvanha 32	¥640	B2F

Prize money is four times the level of the trainer’s last Pokémon times the trainer class’s base rate (doubled in double battles). Trainers with rematches call you on the PokéNav’s Match Call when they want to battle again.

Items

Item	How	Where
Max Elixir	Item ball	B1F
Master Ball	Item ball	B1F
Nugget	Item ball	B1F
Nest Ball	Item ball	B2F

Hidden items can be found with the Itemfinder.

Tips

Pick up the Master Ball on B1F; it is an ordinary item ball, so check every ball on that floor.
Two of the item balls on B1F are really Electrode at Lv30, so have a Ground-type ready or a healthy lead before touching them.
Matt's Mightyena 34 and Golbat 34 are the toughest fight here; Electric or Rock moves handle Golbat and Fighting moves handle Mightyena.
The grunts mostly use Poochyena, Zubat and Carvanha in the low 30s and pay ¥620–¥640 each.
Grab the Max Elixir and Nugget on B1F and the Nest Ball on B2F while you are working out the warp panels.

Walkthrough: Part 12: The Magma and Aqua Hideouts

FAQ

Where is the Master Ball in Pokémon Emerald?

It is in an item ball on B1F of the Aqua Hideout in Lilycove City.

How do you get into the Aqua Hideout in Emerald?

Surf to the cave east of Lilycove City. The grunts at the entrance let you through once Team Aqua has raided Slateport's harbour for the submarine.

Who do you fight at the end of the Aqua Hideout?

Aqua Admin Matt, with Mightyena 34 and Golbat 34. Archie has already left in the stolen submarine.

Why did an item ball attack me in the Aqua Hideout?

Two of the balls on B1F are wild Electrode at Lv30 disguised as items.

Sources & picture credits

Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances, items, trainers, rematch teams, gifts, trades and shops come from the pret/pokeemerald decompilation. Maps and sprites © Nintendo / Creatures / GAME FREAK, archived from the Bulbagarden Archives; the Hoenn map is drawn from the game’s own PokéNav map graphics (listed on the image gallery).