How Do You Get To Full Moon Island In Pokemon Platinum?

In Platinum, Full Moon Island is where you find cresselia and the Lunar Wing. You need to go Canalave City after getting the national dex and go to the sailor's house nearest to the dock (where you normally go to get to Iron Island) and talk to the wife (the boy should be in the bed and mutters when you try talking to him) she will tell you that the boy in bed having nightmare's and is unable to wake up. Then talk to the sailor and he will go to full moon island to find the Lunar Wing for his son.

Well make sure you talk to the boy and his mother in the house in canalave city. You then just talk to the sailor near the house that usually brings you to the other Island. He instead takes you to full moon island where you find Cresselia and you can then hunt it down :D  good luck :)  PS- It runs away so get a fast pokemon with mean look thats about lv. 48

Before or when you got your nat dax and dos any one know a good guide site plz

You have to pass the national Dex you fly to Canalave city and go to full-moon island and get the lunar wing to the sleeping boy and he wakes up from his bad dream and you have to find cresseslia all over sinnoh just like Mespirt I suggest you use a master ball or else it will flee you know now access Full-moon island. Also how do I unlock Half-moon island?

Pokemon event.

The guy that told you its mt coronet is an idiot you have to talk to the sailor at canalave city at night and hell tell you that his sone is having nightmares and he wants you to go to find the lunar orb

It doesn't work ive talked to her but when I talk to the sailor it still says iron island

You have to talk to the boy in bed, not just the mother. Once you talk to both go talk to the sailor. I just did it.

Need help the boy is never in bed and ive dun all you can in the game HELP ME

Yea you have to go to the sailor house but... You will need to get a national pokedex and to get that you will need to see all the pokemon in the game and don't cheat!

Go to iron Island fist go inside the house whit a man in it he talks for a while then go to the house with the sleeping boy

Beat the Pokemon league and then go 2 canalave city.
Talk 2 the sailor who takes you 2 iron isle.(he is inside his house, next 2 the boat)
and his son is sick, then he will take you 2 full moon isle

I used a ar code to get national dex and complete Sinnoh dex, there  all fine. The boys not in bed. I'm at the 7th gym..what do I have to do?

Use the action replay walk through walls cheat and ride or run/walk there

You need a member ship pass and a national pokedex

You can only do that in Canto region... You know like in "FIRE RED" and "LEAF GREEN" in "DIAMOND" "PEARL" and "PLATINUM" it is "MT. CORONET".

As I know finish the quest in stark volcano where you can get HEATRAN and if done.. Go to canalave city..

Go to new moon make sure you have  a ds actuil replay .My bff has one.my name is bryce herndon.+

No its lunar wing and you can go to the sailors house any time you want