beat the snowpoint city gym leader and get HM rock climb above a house in route 217 then use it on the side and you get to go in, pearl and diamond you just have to beat the gym leader but it is best to get HM rock climb.
go to snowpoint city ;)
GO TO SUNISHORE CITY THAT BEFORE HAS BEEN BLOCKED
go 2 spear pillar
route 217, lake acuity, acuity lakefront, but you have to use the dongle method (see bulbapedia)
Lake Acuity is the home lake of Mesprit, Azelf, and Uxie. After you do the spear pillar event, use the move surf to swim to the middle of the lake where there is a cave. Enter and you will see all three of them. Try talking to them but they will run away, now you just have to get lucky finding them.
go to snowpoint city and go to the sailor. Dont talk to him. Go left to some stairs and it will get you to acuity lakefront. But to get to the lake, you'd have to go north until you can see a place that you can use rock climb. Use it. Go left until yo see a break in a tree. Go into that break and you will enter lake acuity
Go to Lake Acuity to caught Uxie Valor ffor Azelf and you need to cahase mesprit around sinnoh after meeting it at lake Verity you can use a marker map to see were it is Go to Lake Acuity to caught Uxie Valor ffor Azelf and you need to cahase mesprit around sinnoh after meeting it at lake Verity you can use a marker map to see were it is
you go to the 3 lake and the man standing there should not be there is near velistone city
The ability to see clearly is called visual acuity
Go Right To Snowpoint City Then Fight The Gym Leader :D Go Right To Snowpoint City Then Fight The Gym Leader :D Go Right To Snowpoint City Then Fight The Gym Leader :D
After you have 7 gym badges and go surf from Jubilife city to Canalave city. Then go to Canalave cities library. Go all the way up the library floors then you will see professor Rowan. Then he'll talk to you then a rumble starts, go down all the floors and come out of the library and again professor Rowan talk. to you again and fly to twinleaf town (lake Verity) or fly to Pastoria city (lake Valor) or Snowpoint city (lake Acuity) and there are lots of Galactic grunts. Ands that's all!! I hope I helped!
you have to go to lake acuity near snowpoint city after defeating team galactic for good and having battled giratina. surf across the lake, enter the cave and as you speak to it you will battle it.