Location of Seafoam Islands in the Kanto region
Situated on Route 20 of Kanto , Seafoam Islands are a pair of islands that divide Route 20 into two separate segments. Hence, to get to the other end of the route, it must be passed through. This large cave comprises of 5 floors, where the extremely rare Ice and Ground-type Swinub can be found.
Besides the basic ladders that helped players to move across different floors, there are also a number of holes on the floor where players can drop through to end up in some specific locations labeled in the maps below, with a green background. For the shortest route to move from Route 20 East to Route 20 West, drop down Hole 13 , 15 and 17 , then take Stair 9 , 7 and 3 . To travel from Route 20 West to Route 20 East, players will instead take Stair 3 , 7 , and 9 , then surf across the water to take Stair 8 , 5 , and 1 .
Articuno , one of the three legendary birds can be found inside this cave but you must first obtained the Feather of Articuno . This item can be dropped from any wild Pokémon in here as long as your leading Pokémon is an Ice-type and alive. To encounter Articuno , give the feather to your leading Pokémon and there will be an extremely small chance for the level 85 Pokémon to appear.
Seafoam Islands F1 [ ]
Wild Pokémon [ ]
Wild Pokémon of Level 15 - 25 are encountered here:
Pokémon
Type
Method
Rarity
Rate
Normal Member
Gold Member
Zubat
Poison
Flying
Walking
Common
Golbat
Poison
Flying
Walking
Rare
Psyduck
Water
Walking
Very Rare
Slowpoke
Water
Psychic
Walking
Very Rare
Swinub
Ice
Ground
Walking
Extremely Rare
Average Experience and EV yield [ ]
Note: This section assumes only common and uncommon Pokémon are fainted and that no blessings are active.
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed
Seafoam Islands F2 [ ]
Wild Pokémon [ ]
Wild Pokémon of Level 15 - 25 are encountered here:
Pokémon
Type
Method
Rarity
Rate
Normal Member
Gold Member
Zubat
Poison
Flying
Walking
Common
Golbat
Poison
Flying
Walking
Rare
Psyduck
Water
Walking
Very Rare
Slowpoke
Water
Psychic
Walking
Very Rare
Golduck
Water
Walking
Very Rare
Seel
Water
Walking
Very Rare
Swinub
Ice
Ground
Walking
Extremely Rare
Average Experience and EV yield [ ]
Note: This section assumes only common and uncommon Pokémon are fainted and that no blessings are active.
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed
Seafoam Islands F3 [ ]
Wild Pokémon [ ]
Wild Pokémon of Level 15 - 25 are encountered here:
Pokémon
Type
Method
Rarity
Rate
Normal Member
Gold Member
Zubat
Poison
Flying
Walking
Common
Golbat
Poison
Flying
Walking
Rare
Psyduck
Water
Walking
Very Rare
Slowpoke
Water
Psychic
Walking
Very Rare
Golduck
Water
Walking
Very Rare
Seel
Water
Walking
Very Rare
Swinub
Ice
Ground
Walking
Extremely Rare
Average Experience and EV yield [ ]
Note: This section assumes only common and uncommon Pokémon are fainted and that no blessings are active.
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed
Seafoam Islands F4 [ ]
Wild Pokémon [ ]
Wild Pokémon of Level 15 - 40 are encountered here:
Pokémon
Type
Method
Rarity
Rate
Normal Member
Gold Member
Zubat
Poison
Flying
Walking
Common
Golbat
Poison
Flying
Walking
Rare
Psyduck
Water
Walking
Very Rare
Slowpoke
Water
Psychic
Walking
Very Rare
Golduck
Water
Walking
Very Rare
Seel
Water
Walking
Very Rare
Swinub
Ice
Ground
Walking
Extremely Rare
Magikarp
Water
Fishing
Common
Krabby
Water
Fishing
Uncommon
Horsea
Water
Fishing
Rare
Psyduck
Water
Fishing
Very Rare
Slowpoke
Water
Psychic
Fishing
Very Rare
Gyarados
Water
Flying
Fishing
Very Rare
Tentacool
Water
Poison
Surfing
Common
Krabby
Water
Surfing
Uncommon
Horsea
Water
Surfing
Rare
Psyduck
Water
Surfing
Very Rare
Slowpoke
Water
Psychic
Surfing
Very Rare
Golduck
Water
Surfing
Very Rare
Seel
Water
Surfing
Very Rare
Dewgong
Water
Ice
Surfing
Very Rare
Average Experience and EV yield [ ]
Note: This section assumes only common and uncommon Pokémon are fainted and that no blessings are active.
Walking [ ]
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed
Fishing [ ]
Average Experience
Normal Member
Gold Member
EV
HP
Attack
Defense
Special Attack
Special Defense
Speed
Surfing [ ]
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed
Seafoam Islands F5 [ ]
Wild Pokémon [ ]
Wild Pokémon of Level 15 - 25 are encountered here:
Pokémon
Type
Method
Rarity
Rate
Normal Member
Gold Member
Zubat
Poison
Flying
Walking
Common
Golbat
Poison
Flying
Walking
Rare
Psyduck
Water
Walking
Very Rare
Slowpoke
Water
Psychic
Walking
Very Rare
Golduck
Water
Walking
Very Rare
Seel
Water
Walking
Very Rare
Swinub
Ice
Ground
Walking
Extremely Rare
Magikarp
Water
Fishing
Common
Krabby
Water
Fishing
Uncommon
Horsea
Water
Fishing
Rare
Psyduck
Water
Fishing
Very Rare
Slowpoke
Water
Psychic
Fishing
Very Rare
Gyarados
Water
Flying
Fishing
Very Rare
Tentacool
Water
Poison
Surfing
Common
Krabby
Water
Surfing
Uncommon
Horsea
Water
Surfing
Rare
Psyduck
Water
Surfing
Very Rare
Slowpoke
Water
Psychic
Surfing
Very Rare
Golduck
Water
Surfing
Very Rare
Seel
Water
Surfing
Very Rare
Dewgong
Water
Ice
Surfing
Very Rare
Average Experience and EV yield [ ]
Note: This section assumes only common and uncommon Pokémon are fainted and that no blessings are active.
Walking [ ]
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed
Fishing [ ]
Average Experience
Normal Member
Gold Member
EV
HP
Attack
Defense
Special Attack
Special Defense
Speed
Surfing [ ]
Average Experience
Normal Member
Gold Member
EV
Normal Member
Gold Member
HP
Attack
Defense
Special Attack
Special Defense
Speed