Seafoam islands is east of cinnibar island and southwest from fuchsia city.
You don't get to see it on any game other than GSC/HGSS
you can't they only put that in on the remakes of the game (firered and leafgreen)
first catch a ditto. then go to island 4 where you can breed pokemon. put the ditto in with a pokemon. the lady will tell you they dont like each other but they will breed a duplicate pokemon.
Go to Vermilion and get on one of the many Seagallop boats (I think there are 10) and go to the item on the menu that says "Other" there you will find Five Island.
you need eon ticket, or some other kind of ticket to unlock it, theyre event things tho
You have to trade them from other games.
if ur referring to the Pokemon daycare, one is located south of cerulean city, and the other daycare (also a breeding center) is on four island.(u must beat the elite four to get to four island.)
you can if you chose it as your starter but the only other way is to trade one from another leafgreen or firered.
you can get Pokemon that are not in the other version
NO!! you can caught it on other version like a Pokemon hack
You can't go to the island unless you have the aurora ticket which is now impossible to get without cheats, with that show the sailor who takes you on the ships he will take you to Birth Island.
impossible unless if you trade it form Pokemon leafgreen or other related Pokemon games (except DS Pokemon games) . in other words it is a Pokemon version exclusive Pokemon like growlithe (firered) and vulpix (leafgreen)