This page outlines all the wild Pokémon you can encounter in Bogsunk Cavern in the Grand Underground.
(1 of 2) Bogsunk Cavern.
Bogsunk Cavern. (left), TM19 Giga Drain. (right)
Bogsunk Cavern is a large hideaway located in the south-east corner of the Grand Underground. No matter how you look at it, it’s a bigger version of a Swampy Cave.
How to Reach Bogsunk Cavern
The only way to get to Bogsunk Cavern is by going underground from Sunyshore City, then heading south-west through the tunnels. This trip better be worth it!
Item Locations
| Item | Location |
|---|---|
| TM19 Giga Drain | North-east corner |
| Dusk Stone | South-west corner |
Wild Pokémon
Available From the Start
Rare Spawns
Available After Obtaining Strength
Available After Obtaining Defog
Available After Icicle Badge
| Pokémon | Type | Notes |
|---|---|---|
 Tentacool |
  |
- |
 Tentacruel |
|
- |
Available After Obtaining Waterfall
| Pokémon | Type | Notes |
|---|---|---|
 Whiscash |
 |
- |
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