This page outlines all the wild Pokémon you can encounter in Big Bluff Cavern in the Grand Underground.
(1 of 2) Big Bluff Cavern.
Big Bluff Cavern. (left), TM34 Shock Wave. (right)
Big Bluff Cavern is a large hideway situated to the far east of the Grand Underground. It’s a bigger version of a Rocky Cave, but the rare spawns are based on a Grassland Cave.
How to Reach Big Bluff Cavern¶
From the beginning, if you’re determined, you can travel all the way east along the central band of the Grand Underground to reach this cavern. The closest entrance to the cavern is via the Pokémon League; besides that, it’s not too faraway from the Veilstone City Entrance.
Item Locations¶
| Item | Location |
|---|---|
| TM34 Shock Wave | At the north edge of the cavern, halfway across. |
Wild Pokémon¶
Available From the Start¶
Rare Spawns¶
Available After Obtaining Strength¶
| Pokémon | Type | Notes |
|---|---|---|
  Bronzor |
  |
- |
Available After Obtaining Defog¶
| Pokémon | Type | Notes |
|---|---|---|
  Graveler |
  |
- |
  Hippopotas |
|
- |
Available After National Pokédex¶
| Pokémon | Type | Notes |
|---|---|---|
  Aron |
|
- |
  Baltoy |
|
- |
  Beldum |
|
- |
  Cacnea |
 |
- |
  Cacturne |
 |
- |
  Camerupt |
 |
- |
  Cubone |
|
- |
  Furret |
 |
- |
  Gligar |
 |
Brilliant Diamond only |
  Lairon |
|
- |
  Larvitar |
|
Brilliant Diamond only |
  Numel |
|
- |
  Phanpy |
|
- |
  Pupitar |
|
Brilliant Diamond only |
  Rhydon |
|
- |
  Rhyhorn |
|
- |
  Sandshrew |
|
Shining Pearl only |
  Sandslash |
|
Shining Pearl only |
  Sentret |
|
- |
  Shuckle |
 |
- |
  Tauros |
|
- |
  Trapinch |
|
- |
  Vibrava |
 |
- |
  Zigzagoon |
|
- |
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