Seafloor Cavern

Seafloor Cavern — Hoenn

Overviewing collage Secret Underwater Cavern Seafloor Cavern Entrance Seafloor Cavern R1 Seafloor Cavern R2 Seafloor Cavern R3 Seafloor Cavern R4 Seafloor Cavern R5 Seafloor Cavern R6 Seafloor Cavern R7 Seafloor Cavern R8 Seafloor Cavern R9

Location 200px A positional vantage point of Seafloor Cavern in Hoenn.

Resources Battleable NPCs 11 Ground-lootable items 2 Berry trees 0

Seafloor Cavern is an underwater cave located in the middle of Route 128 Underwater. This place is the next story location after completing Mossdeep City‘s gym and accepting Steven’s request. The cavern can however only be entered during that moment, and once the cavern has been completed, it is no longer possible to reenter. Fortunately, the only valuable item that can be picked is in the way.

To enter and complete the Seafloor Cavern, it will be necessary to prepare three moves: Surf, Dive and Rock Smash.

Seafloor Cavern Quest

After accepting Steven’s request and entering Seafloor Cavern, the goal will be, just like back in Magma Hideout, to simply reach the furthest room and trigger the events in front of Kyogre. However, there will be a few puzzles throughout the cave, although very simple.

R1 to R4

The first four rooms link to each other in a slightly illogical way. As such, each entrance lead to the following:

• R1: North leads to R4, East leads to R2, South leads to the Entrance.
• R2: North leads to R1, South and East leads to R3.
• R3: North-west and Center leads to R2, North-east leads to R4, South leads to the entrance
• R4: South-west leads to R3, South-east leads to R1, North-west leads to R5, North-east leads to R6.

To progress, it is however as simple as going directly north all the time. R4 will however be blocked by rocks, which is why it is necessary to bring Rock Smash beforehand.

R5 and R6

North of R4 are two entrances, both leading to a different Water Slider puzzle. Both lead to R7 after entering the northern entrance, however R5 has an extra entrance in the middle which returns to the Entrance.

To solve R5, follow the indications:

• Enter any arrow tile at the entrance.
• Right
• Right
• Left

If the arrows leading to the center entrance is taken, it is possible to simply keep going left instead of entering the entrance and being sent back to Seafloor Cave Entrance.

To solve R6, simply take the southmost arrow at the entrance, then go north while avoiding every single arrow. Even if any other arrow was taken, it is fairly simple and not possible to take a wrong turn.

R7

Coming back for the first time in Hoenn, there will be two patrollers Grunts. If they see the player, they will throw him or her back at the beginning of R6 or at the north end of R1, depending on which of the two patrollers discovered the player. They are however very simple to sneak by.

R9

The final room will have an encounter with Aqua Admin Matt. His Pokémons are estimated to be level 70, and as such it is recommended to heal before the fight. Once defeated, he will teleport the player back to the surface and it will no longer be possible to reenter the cave. With the Seafloor Cavern quest completed, the next story objective will be in Sootopolis City

Aqua Admin Matt

Muk Move Type Category Base Power Accuracy Mud Bomb Ground Special 65 85 Thunder Electric Special 110 70 Gunk Shot Poison Physical 120 80 Toxic Poison Status — 90

Mightyena Move Type Category Base Power Accuracy Crunch Dark Physical 80 100 Take Down Normal Physical 90 85 Shadow Ball Ghost Special 80 100 Sucker Punch Dark Physical 80 100

Mega Sharpedo Move Type Category Base Power Accuracy Earthquake Ground Physical 100 100 Crunch Dark Physical 80 100 Waterfall Water Physical 80 100 Skull Bash Normal Physical 100 100

Emboldened moves avail from a STAB bonus when deployed by that Pokémon. Italicized moves are functionally broken; see their individualized pages for more information.

Items

Item	Quantity	Cooldown	Location
	Escape Rope	1	Not respawnable	In the east of Seafloor Cavern R3.
	TM26 — Earthquake	2	Not respawnable	In the middle of Seafloor Cavern R9.

NPC Trainers

All trainers can only be fought once, as part of the Seafloor Cavern quest.

Seafloor Cavern R1

Seafloor Cavern R1 Trainers

Aqua Grunt Golbat Lv. 50 Sharpedo Lv. 50

Magma Grunt Charizard Lv. 51 Croconaw Lv. 52

All NPCs cool down after 7 days unless noted contrariwise.

Seafloor Cavern R2

Seafloor Cavern R2 Trainers

Magma Grunt Mightyena Lv. 51 Muk Lv. 52 Weezing Lv. 52

Aqua Grunt Carvanha Lv. 50 Sharpedo Lv. 51 Shuppet Lv. 50

All NPCs cool down after 7 days unless noted contrariwise.

Seafloor Cavern R3

Seafloor Cavern R3 Trainers

Aqua Grunt Bagon Lv. 49 Shelgon Lv. 51 Salamence Lv. 53

Aqua Grunt Muk Lv. 50 Muk Lv. 51 Mightyena Lv. 51

Aqua Grunt Golbat Lv. 47 Golbat Lv. 50 Golbat Lv. 52 Golbat Lv. 53

All NPCs cool down after 7 days unless noted contrariwise.

Seafloor Cavern R4

Seafloor Cavern R4 Trainers

Aqua Grunt Arbok Lv. 48

All NPCs cool down after 7 days unless noted contrariwise.

Seafloor Cavern R8

Seafloor Cavern R4 Trainers

Magma Grunt Camerupt Lv. 51 Tyranitar Lv. 53

Magma Grunt Manectric Lv. 52 Hariyama Lv. 53 Camerupt Lv. 54

All NPCs cool down after 7 days unless noted contrariwise.