Yellow Seafoam Islands
A frozen sea cave of rushing currents and boulder puzzles, where the legendary bird Articuno slumbers in the icy depths.
Seafoam Islands is in Kanto. In the story you arrive from Route 20 through its entrance and it comes before Cinnabar Island.
SEAFOAM ISLANDS MAP
The cave drops through four flooded basement levels of ice. Boulders sunk into holes in the floor redirect the currents, and only after they slow can you Surf the channels.
Seafoam Islands Walkthrough
1F
- The east entrance only leads down, so follow its ladders, SurfMoveSurfWaterClassSpecialPower95Accuracy100%PP15A strong water-type attack. B3F's eastern water south into B4F, and climb the western ladders back up.
- Push the west boulder north and west into its hole, and the east boulder north and west into the other.
Requires StrengthMoveStrengthNormalClassPhysicalPower80Accuracy100%PP15A powerful physical attack. (Rainbow Badge) to move
B1F
- Follow it down and push it east again on B2F.
- Climb the ladders back to 1F and drop through the east hole.
- Push the second boulder east into its hole.
Appears here only after you push it down a hole on 1F; requires StrengthMoveStrengthNormalClassPhysicalPower80Accuracy100%PP15A powerful physical attack. (Rainbow Badge) to move
B2F
- With both B2F boulders down, the B3F current no longer sweeps you away.
- For the hidden Nugget, the ladder in the south of B1F drops you near its rock in the south area of B2F.
Appears here only after you push it down a hole on B1F; requires StrengthMoveStrengthNormalClassPhysicalPower80Accuracy100%PP15A powerful physical attack. (Rainbow Badge) to move
NuggetB3F
- Shove them until one falls down each hole, which calms the B4F current.
- B3F's hidden Max Elixir is on the rock south of the easternmost boulder.
Requires StrengthMoveStrengthNormalClassPhysicalPower80Accuracy100%PP15A powerful physical attack. (Rainbow Badge) to move
Max ElixirB4F
- Save first, because knocking it out removes it for good.
- Then climb the western ladders to 1F and leave west to Route 20.
Pokemon Encounters
Articuno sleeps in the depths at level 50, the legendary ice bird and the reason most trainers come. The caves are full of Seel and the evolved Dewgong for early Ice coverage, with a 1 percent Slowbro the rarest thing swimming the caves.
Old Rod1
Good Rod2
Super Rod3Old Rod1Good Rod2Super Rod3Articuno
ITEMS
Seafoam's items all hide in the ice: a Nugget, a Max Elixir, and a spare Ultra Ball for whatever you are hunting in the depths.
Nugget
Sell for 5000 Pokédollars, or to Ore Collector for 10000 Pokédollars.
Nugget
Sell for 5000 Pokédollars, or to Ore Collector for 10000 Pokédollars.
Max Elixir
Restores PP to full for each move.
Ultra Ball
Tries to catch a wild Pokémon. Success rate is 2×.
Seafoam Islands Guide
Those are the floor currents, and they will keep dragging you off course until you shut them down. Each boulder you sink into a hole weakens the flow beneath you, so work your way down plugging them. Once the water calms, the path to Articuno finally opens up.
Skippable in theory, but Articuno makes it worth a stop. The islands sit on the sea route between Fuchsia and Cinnabar, so detouring in barely costs you anything on the way to Blaine's gym. Just bring a free afternoon for the puzzle.