when you have the map talk to the ferry lady and shell take you to the island were you get Mew
Trade it from emerald using pal park or use an action replay to get it in emerald you need the old sea map from the Pokemon fiesta event in 2005
Only by a Nintendo event.
Actually scrap that,you need the old sea map to get there but you have to trade it with someone who has the old sea map on Pokemon ruby/sapphire
The Old Sea Map was an event item that allowed you to access Faraway Island where Mew resides.
Nowhere.Old sea map is only gift for you.I hear this.
== == u can get 1 at the s.s ferry at apt. briney
i dont think you can get it
Mix records or go to a Nintendo event
it is 692P66 PP296P 55LO33 22RR66
Use action replay DS for Pokemon Diamond
The only natural way to get Mew in Pokemon Emerald is from the Old Sea Map special event. Since it already ended, there's no other way of getting Mew.
Mew can be migrated from Pokemon Emerald if that game was participated in the Japanese Mew event to get the Old Sea Map or have 999 Pokemon in Pokemon Ranch and Hailey will give you Mew.