Cinnabar Island — Pokémon Heart & Soul
Every wild Pokémon here, by encounter method.
Cinnabar Island lists 16 Pokémon across 6 encounter methods (grass, grass, surf, old rod, and more), between level 40 and 50. 2 of them are on no other route's wild tables in this guide: Weezing, Wailmer.
Cinnabar Island in other guides
The same area in other ROM hacks on this site. Each one has its own encounter table.
Celia's Stupid RomhackFire Red OmegaInfinite FusionPokemon Kanto Expansion PakPokémon Aesthetic RedPokémon AmbrosiaPokémon FireRed & LeafGreen+Pokémon FireRed: Rocket EditionPokémon Phoenix RedPokémon Polished CrystalPokémon SoothingSilverRadical RedSacred Gold & Storm SilverYu-Gi-Oh POKeDUEL
The original game's table for this area:
Pokémon CrystalPokémon FireRed & LeafGreenPokémon Gold & SilverPokémon HeartGold & SoulSilverPokémon Red & BluePokémon Yellow
Opens up at Beat Leader Blaine — Seafoam Islands Gym, badge 15.