There is no way normally to open the door. The only way is if you get the member pass over mystery gift. When you do, you can catch Darkrai by going to new moon island.
Get Mystery Gift and then get the member card, get the national pokedex and then try again
Go to Jubilife City. Make sure you have a Pokemon that knows the move Surf [HM 03]. Go to the entrance to the West of Town. You'll pass the TV Company and the PokeTech Company. Go through the Check Point Place. And you'll come to Route 218. Then use Surf And follow the water tot he left. Hope it Helps. -CelestialIllusion
how do you get to sunshore city?
members event get the members card fter national pokedex and you fall asleep the you are on a island and you will see dakrai and capture it
You don't unlock, Blackthorn city. You go through the Ice path and then your there.
beat bryon in the steel gym, canalve city
In a house on the right side of Canalve City
you have to get th mysrery gift to capture darkrai and go to the hotel inn a man will greet you there and you will fall asleep ,and poof you will apear in new moon island and have a chance to capture darkrai.
cresselia will be roaming sinnoh
i think it happens when you beat the elite four
Get Mystery Gift and then get the member card, get the national pokedex and then try again
They are there because you need to give the elder of Celestic town the old charm
you went to the wrong door . try the door near the sailor in canalve city.
Canalave City head down from the poke centre its the first house.
you have to go to canalve city
After you have beat the 5th gym leader, Fantina, go to Jubilife City and go left. there should be a pathway that goes into a smallish lake. Surf on that until you reach land to your left. Just past there is Canalave City.
there is no Pokemon in the way STUPID