Seafloor Cavern is a large underwater cave where the super-ancient Legendary Pokémon is sealed in deep slumber.
It consists of various interconnected maze-like rooms, featuring water current puzzles and boulder puzzles. This cave plays a crucial role in the main story, featuring a cutscene with Kyogre or Groudon alongside the leaders of Team Aqua and Team Magma.
Table of Contents
| Usable Moves / Items for Navigation |
|---|
| HM03 Surf |
| HM04 Strength |
| HM06 Rock Smash |
| HM07 Dive |
Connecting Areas
| Exits from Seafloor Cavern |
|---|
| South: Route 128 |
Wild Pokemon
Seafloor Cavern (Cave)
| Cave | |
|---|---|
| Species | Golbat |
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|
| Encounter Chance | 100% |
| Levels | Lv. 33-36 |
| Horde Encounter | |
|---|---|
| Species | Zubat |
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|
| Encounter Chance | 100% |
| Levels | Lv. 18 |
Seafloor Cavern (Water)
| Surfing | ||
|---|---|---|
| Species | Tentacruel | Golbat |
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|
|
| Encounter Chance | 65% | 35% |
| Levels | Lv. 25-30 | Lv. 25-35 |
| Fishing – Old Rod | ||
|---|---|---|
| Species | Magikarp | Tentacool |
 |
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|
| Encounter Chance | 65% | 35% |
| Levels | Lv. 10-15 | Lv. 5 |
| Fishing – Good Rod | |||
|---|---|---|---|
| Species | Magikarp | Tentacool | Wailmer |
|
|
 |
|
| Encounter Chance | 60% | 35% | 5% |
| Levels | Lv. 25 | Lv. 25 | Lv. 25 |
| Fishing – Super Rod | |
|---|---|
| Species | Wailmer |
|
|
| Encounter Chance | 100% |
| Levels | Lv. 30-40 |
Obtainable Items
| Item | Method | Exact Location |
|---|---|---|
| TM55 Scald |
On the middle island, inside the second water current puzzle room (Requires HM04 Strength) |
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| TM26 Earthquake |
Near the staircase, southwest corner of the second-to-the-last room. (Requires HM04 Strength) |
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| Heart Scale (Hidden) | Southeast corner of the cavern’s entrance room |
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| Escape Rope (Hidden) |
Southeast corner of the room with four ledges (Requires HM04 Strength) |
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Trainers
Seafloor Cavern
| Team Magma/Aqua Grunt #1 | |||
|---|---|---|---|
 |
 |
 |
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| Pokémon | Numel Lv. 39 (OR) | Carvanha Lv. 39 (AS) | Mightyena Lv. 39 |
| Type | Fire / Ground (OR) | Water / Dark (AS) | Dark |
| Reward Money | 1,560 Poké Dollars | ||
| Team Magma/Aqua Grunt #2 | |
|---|---|
 |
|
| Pokémon | Golbat Lv.41 |
| Type | Poison / Flying |
| Reward Money | 1,640 Poké Dollars |
| Team Magma/Aqua Grunt #3 | ||
|---|---|---|
 |
|
|
| Pokémon | Numel Lv. 41 (OR) | Carvanha Lv. 41 (AS) |
| Type | Fire / Ground (OR) | Water / Dark (AS) |
| Reward Money | 880 Poké Dollars | |
| Team Magma/Aqua Grunt #4 | |
|---|---|
 |
 |
| Pokémon | Muk Lv.41 |
| Type | Poison |
| Reward Money | 1,640 Poké Dollars |
| Team Magma/Aqua Grunt #5 | ||
|---|---|---|
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|
|
| Pokémon | Mightyena Lv. 38 | Muk Lv.40 |
| Type | Dark | Poison |
| Reward Money | 1,600 Poké Dollars | |
Team Aqua/Magma Leader Battle
In the deepest part of Seafloor Cavern, Aqua Leader Archie or Magma Leader Maxie will challenge you to one final battle.
| Magma Leader Maxie (OR) | ||||
|---|---|---|---|---|
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| Pokémon | Mightyena Lv.41 | Weezing Lv.41 | Golbat Lv.41 | Mega Camerupt Lv.43 |
| Type | Dark | Poison | Poison / Flying | Fire / Ground |
| Ability | Quick Feet | Levitate | Inner Focus | Magma Armor |
| Held Item | None | None | None | Cameruptite |
| Moves |
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| Aqua Leader Archie (AS) | ||||
|---|---|---|---|---|
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| Pokémon | Mightyena Lv.41 | Muk Lv.41 | Golbat Lv.41 | Mega Sharpedo Lv.43 |
| Type | Dark | Poison | Poison / Flying | Water / Dark |
| Ability | Quick Feet | Stench | Inner Focus | Rough Skin |
| Held Item | None | None | None | Sharpedonite |
| Moves |
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