If you don't want to go through seafoam islands there is a shortcut if you want to take it, Fly to pallet town and go south use Surf and continue south until you reach Cinnibar island guess what you didn't have to go through seafoam island!
You can catch Articuno on seafoam island whenever you don't have to beat the Pokemon League.
In the Seafoam Islands, east of Cinnabar Island. You need HM Waterfall, though.
Seafoam island is east of cinnabar and Articuno lives there.
I assume you're talking about Articuno. To get Articuno you have to go to the Seafoam Islands, which is on route to Cinnabar Island.
Go to cinnabar island and travel right, or go to fuchia city and travel south, and just follow the route
in the seafoam islands in kantobottom of seafoam island
seafoam island
You swim from Cinnabar island and just swim from there and you'll be at seafoam islands in notime
Go to the Seafoam Islands. If you solve the puzzle of the place, sliding boulders into holes to block the flow of the water's current, you can surf accross the water to a small island in the heart if the Seafoam Islands. There, you will find Articuno.
Cerulean forrest, Berry forest, Seafoam island, cave Brink. Fire Red only. Or you can get psyduck and evolve it at Lv.33
U must finish all gyms before u can get there
Power Plant is Zapdos, Seafoam Islands cave is Artincuno, And Island 1 for Moltres(at the one fire mountain thing,forget what it is called sorry...)