Where to find Seel in FireRed & LeafGreen

Trade: Cinnabar Island
Surf: Seafoam Islands (60%)
Walk: Seafoam Islands (40%)

• Cinnabar Island — Trade
• Seafoam Islands (B1F, B2F, B3F, B4F) — Surf, Walk

Seel in every game · Pokémon FireRed & LeafGreen interactive map (Kanto)