Where to find Horsea in Red, Blue & Yellow

Super Rod: Route 12 (70%, Yellow only), Route 13 (70%, Yellow only), Cinnabar Island (25%, Red & Blue only) + 7 more
Walk: Seafoam Islands (60%, Red only)

• 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 (1F, B1F, B2F, B3F, B4F) — Super Rod, Walk
• Vermilion City — Super Rod

Horsea in every game · Pokémon Red, Blue & Yellow interactive map (Kanto)