you need to get it by mystery gift , with it you can get mew
The Old Sea Map was an event item that Nintendo officially distributed, which has expired. The only way to get it is by using Code Breaker or GameShark for the Gameboy Advance with the correct code.
Use action replay DS for Pokemon Diamond
Answer:Mew is inaccessible in FireRed, and can only be transferred over through trade with an Emerald game that had attended a Event for the Old Sea Map.
Post your cartridge to Nintendo and they will download it for you. You can't get the old sea map anymore so this is the only way to do it!
An old sea map is a map you get from mystery gift and if you have a old sea map you can catch mew. You can also get different stuff from mystery gift and catch different Pokemon like deoxys, ho-oh and lugia. But I think it is impossible to get the old sea map, why? Well because I've tried the mystery gift thing with a wireless adaptor like 100 times and still didn't work, if it worked for you, you got lucky>_<so try your best and get mew!^-^
it is 692P66 PP296P 55LO33 22RR66
Mystery Gift
The Old Sea Map was an event item that allowed you to access Faraway Island where Mew resides.
Only by a Nintendo event.
Nowhere.Old sea map is only gift for you.I hear this.
Mix records or go to 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
i dont think you can get it
i dont know i just wanted to say something
Old Sea Charter?First of all it's called the old sea map. you need to go to a Nintendo event
when you have the map talk to the ferry lady and shell take you to the island were you get Mew
You get mew on faraway island by getting the Old Sea Map. Hope this helped!:)