so easy you need a action reply code so you can get there and catch darkrai
On Newmoon Island.
The Darkrai is found on Newmoon Island in the game Pokemon Diamond. To reach the island players will need to sail.
There is a fullmoon island, which has a boat ride to it, and you find Cresselia there, and there is a NewMoon island, with darkrai, which you need a member's card item for, and THAT is only obtainable by Special Event or cheats. But there is not a "Halfmoon Island".
There is an action replay code for walking through walls. I dont know it, but if you have it go to Fullmoon Island and you through any of the trees on the RIGHT. If you keep walking there will be Newmoon Island. There you can fight Darkrai.
Fullmoon Island can be accessed only after you beat the Elite 4. You must talk to the Sailor in his home.
go to Canalave City and talk to the Sailor. You will now have three options... Iron Island Fullmoon Island Newmoon Island Iron: Riolu Egg Fullmoon: Cresselia Newmoon: DARKRAI! BING!
Go to Canalave City and beat the Gym leader there. Speak to the sailor in front of the boat and he will take you there. Later, after you finish the game, he will take you to Newmoon Island where you find Cresselia! All you have to do is talk to his dying son first.
He is on newmoon island to get there you need to get fullmoon island and use walkthrough cheat east of door on fullmoon island and you will reach another island that is newmoon island
On Newmoon Island.
NewMoon Island east of FullMoon Island
event
In Pokemon Diamond, Pearl and Platinum Darkrai can be found on Newmoon Island. To get to Newmoon Island you need the Member Card for the Harbor Inn at Canalave City.
talk to the woman in the sailor's house then go to the ship and the sailor will take you to fullmoon island
On Newmoon Island, but you have to have a member card.
To get to new moon island in Pokemon diamond you have to go to canalave city and go to the house next to the sailor that takes you to iron island and if you see a boy in bed go talk to tha lady next to him and then talk to him and then go to the sailorand he will take you to new moon island,cresselia is there, go talk to it. good luck also for platinum new moon is where you get darkrai fullmoon is where cresselia is
that was an event that is over but you can get there with action replay
Darkrai can be found at Newmoon Island, but you can't do it without cheats. If you use the walk through everything cheat and you are at Full Moon Island, where you can find Cresselia, you have to walk to the right until you get at Newmoon Island. There you can interact with Darkrai.