it is found out of the game but you can go to gamewinners.com to find out where to get the seachart.
Sadly... no.
You can't
the old chateu is only in Pokemon diamond pearl and platinum versions
Old sea chart
you get a wynaut from the old lady
No.Once you saved another place on Pokemon Emerald , you cant go back to where you saved last time
get it from an old man in shoal cave
its not an emerald its RAYQUAZA the main legendary Pokemon in Pokemon emerald.
There are no more Pokemon Nintendo events for Pokemon emerald unfortunatelt because the game is five years old Sorry
Only by a Nintendo event.
You don't, you have to trade Aerodactyl from FRLG
Not sure how old, but I know that Poochyena is from the Emerald/Ruby/Sapphire versions