Where to find Horsea in Red, Blue & Yellow

• Cinnabar Island — Super Rod
• Route 10 — Super Rod
• Route 11 — Super Rod
• Route 12 — Super Rod
• Route 13 — Super Rod
• Sea Route 19 — Super Rod
• Sea Route 20 — Super Rod
• Sea Route 21 — Super Rod
• Seafoam Islands — Super Rod
• Vermilion City — Super Rod

Horsea in every game · Kanto interactive map

By game: Pokémon Red map · Pokémon Blue map · Pokémon Yellow map