To reach Cinnabar Island, you'll need HM03 (Surf), which you received from the Safari Zone Warden in Fuchsia City after finding his Gold Teeth. Teach Surf to a compatible Pokémon. You can surf south from Pallet Town on Route 21, or west from Fuchsia City on Routes 19 and 20. These water routes are filled with Water-type Pokémon and Swimmers. Be prepared for many battles as you make your way to Cinnabar Island.
