HeartGold & SoulSilver Seafoam Islands
The frozen sea caves south of Cinnabar shelter Blaine's rebuilt fire gym, moved here after the volcano took the old one. Articuno roosts deeper in the same ice, guarding the cold at their heart.
Seafoam Islands is in Kanto. In the story you arrive from Route 20 through its entrance and it comes before Route 19.
SEAFOAM ISLANDS MAP
The Seafoam Islands sink five tiers of sea cave, Surf carrying you between them and ice-slide puzzles steering your path, with Strength boulders to shove along the way.
Pokemon Encounters
Articuno rests deep in the frozen caves at level 50, the Ice legendary worth the trek through the islands. Seel and the Slowpoke line draw collectors otherwise, with Slowbro reaching level 50 and Horsea waiting on the rods.
Articuno
ITEMS
Articuno's frozen cave holds two of the best attacking TMs around, TM13 Ice Beam and TM50 Overheat. A Water Stone, a Grip Claw, and a Zinc wait further inside, with hidden treasures for divers.
TM13 Ice Beam
Ice Beam deals damage and has a 10% chance of freezing the target.
TM13 Ice Beam
Ice Beam deals damage and has a 10% chance of freezing the target.
TM50 Overheat
Overheat deals damage but lowers the user's Special Attack by two stages after attacking.
Rare Candy
A candy that is packed with energy. It raises the level of a single Pokemon by one.
Zinc
A nutritious drink for Pokemon. It raises the base Sp. Def (Special Defense) stat of a single Pokemon.
Grip Claw
A Pokemon held item that extends the duration of multiturn attacks like Bind and Wrap.
Water Stone
Evolves a Poliwhirl into Poliwrath, a Shellder into Cloyster, a Staryu into Starmie, an Eevee into Vaporeon, or a Lombre into Ludicolo.
Big Pearl
A quite-large pearl that sparkles in a pretty silver color. It can be sold at a high price to shops.
Revive
A medicine that revives a fainted Pokemon. It restores half the Pokemon's maximum HP.
Ultra Ball
An ultra-performance Ball that provides a higher Pokemon catch rate than a Great Ball.
Escape Rope
A long, durable rope. Use it to escape instantly from a cave or a dungeon.
Ice Heal
A spray-type medicine. It defrosts a Pokemon that has been frozen solid.
Pearl
A somewhat-small pearl that sparkles in a pretty silver color. It can be sold cheaply to shops.
Max Revive
A medicine that revives a fainted Pokemon. It fully restores the Pokemon's HP.
TRAINERS
The Seafoam caves are patrolled by Skiers and Boarders on Ice and Water teams, a cold-weather crew in the mid-50s. Blaine's gym relocated here after Cinnabar erupted, so his Fire-types wait at the far end too.

Lowell
Seafoam Islands Guide
Articuno hides inside the Seafoam Islands at Level 50. Reaching it takes Surf, Waterfall, Rock Climb, and Strength once you have all 16 Badges.

















