The Great Swamp gives you the ability to find a number of Pokémon, but you have a limited time to do so in Pokémon Brilliant Diamond and Brilliant Pearl. There are specific spawns for each area of the Great Marsh, and some Pokémon are only available after completing the game. These are all spawns for each area of the Great Swamp in Pokémon Brilliant Diamond and Brilliant Pearl.
1 Zone
Morning
- Azurill
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Preferred Date
- Azurill
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Night
- Azurill
- bibarel
- bidooff
- fun
- Marill
- Noctowl
- Psyduck
- Quagsire
- Wooper
To surf
- Marill
- Psyduck
- Quagsire
- Wooper
Fishing
Old Rod
- Magikarp
Good cane
- Barborch
- Gyarados
- Magikarp
SuperRod
- carvanha
- Gyarados
- Whiskey
2 Zone
Morning
- Azurill
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Preferred Date
- Azurill
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Night
- bibarel
- bidooff
- fun
- Marill
- Noctowl
- Psyduck
- Quagsire
- Wooper
To surf
- Marill
- Quagsire
- Psyduck
- Wooper
Fishing
Old Rod
- Magikarp
Good cane
- Barboarch
- Gyarados
- Magikarp
SuperRod
- carvanha
- Gyarados
- Whiskey
3 Zone
Morning
- Azurill
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Preferred Date
- Azurill
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Night
- Azurill
- bibarel
- bidooff
- fun
- Marill
- Noctowl
- Psyduck
- Quagsire
- Wooper
To surf
- Marill
- Quagsire
- Psyduck
- Wooper
Fishing
Old Rod
- Magikarp
Good cane
- Barborch
- Gyarados
- Magikarp
SuperRod
- carvanha
- Gyarados
- Whiskey
4 Zone
Morning
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Preferred Date
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Night
- bibarel
- bidooff
- fun
- Marill
- Noctowl
- Psyduck
- Quagsire
- Wooper
To surf
- Marill
- Quagsire
- Psyduck
- Wooper
Fishing
Old Rod
- Magikarp
Good cane
- Barboarch
- Gyarados
- Magikarp
SuperRod
- carvanha
- Gyarados
- Whiskey
5 Zone
Morning
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Preferred Date
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Night
- bibarel
- bidooff
- fun
- Marill
- Noctowl
- Psyduck
- Quagsire
- Wooper
6 Zone
Morning
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Preferred Date
- bibarel
- bidooff
- budew
- Marill
- Psyduck
- Quagsire
- starly
- Wooper
Night
- bibarel
- bidooff
- fun
- Marill
- Noctowl
- Psyduck
- Quagsire
- Wooper
To surf
- Marill
- Quagsire
- Psyduck
- Wooper
Fishing
Old Rod
- Magikarp
Good cane
- Barboarch
- Gyarados
- Magikarp
SuperRod
- carvanha
- Gyarados
- Whiskey
Random wild Pokémon
- carnivina
- Croagunk
- Drapyon
- golduck
- Roselia
- crust
- staravia
- Toxicros
Random wild Pokémon after the National PokéDex
- Exeggcute
- gulpin
- Kangaskhan
- Best
- Shroomish
- Combustion
