After giving the ruby to Celio, he will give you a rainbow pass then you can go to 4-6 island.
Whirl islands are in the johto region which is not in firered.
Explore, catch pokemon, train your pokemon.
in 4-7 islands
seafoam islands
you cant
The Sevii Islands(islands 4,5,6,7)
Articuno is in the Seaform Islands
in cinabbar islands
Inside Seafoam Islands.
Seafoam islands.
no
you get articuno in seafoam islands