you have to use surf in palet town
its to the left of the pokemon gym on cinnibar island
In the cinnibar island gym.
South of Pallet town.
In the cinnibar island gym.
on cinnibar island it is the top left building
In the cinnibar island gym.
Cinnibar island if your going in order.
on Cinnabar Island.Pokemon mansion is on cinnabar island if you don't know how to get there go to pallet town then go south surfing on one of your Pokemon and there your at cinnabar island.
If you surf south of Pallet town you will get to Cinnibar Island. It is on there.
navel rock is the 8th island out from Cinnibar island. but you need the mystic ticket
Either train a Koffing or catch one in Pokemon mansion which is located on Cinnibar Island.
It serves one purpose and that is to unlock the Cinnibar Island gym.