USE SURF AND GO TO THE ISLAND IN THE MIDDLE, AND ENTER THROUGH THE DOOR.
It is under the bush in the yugugu cave
You don't. That is only in Emerald version.
Sorry not that i am aware of and i have seen just about every code out there if i find a code i will post it here under Pokemon diamond Fishing rod.
The ruin maniac is under veilstone city in the cave on the left.
USE SURF AND GO TO THE ISLAND IN THE MIDDLE, AND ENTER THROUGH THE DOOR.
You surf there
Presuming this is related to Pokemon Diamond, Pearl, or Platinum, I would say you have to get to a certain point in the game where Team Galactic sets off a bomb and reveals the lake bottom.
Level 30 or under
go under ground to find them
no
Migrating Pokemon is easy. What you do is, to start off make sure you have 6 Pokemon in a box any box, it cant be under or over 6. Put ruby in the GBA slot of your DS and then enter your Pokemon Diamond Game. somewhere on the bottom screen where you turn the game on it should say Migrate Pokemon From Ruby, click on it. then choose the Pokemon and 'walla' they will be in your game then you have to go to the migration place. Then you enter the game and find the Pokemon. throw a pokeball at it and it will be caught straight away. To do this you must have finished the sinnoh dex!!!
you don't go under the island.You can only go in the cave.
Probably not, but you can find a lot of them at www.codejunkies.com under Nintendo ds/GBA/pokemon diamond
The cave under the cycling bridge
It is under the bush in the yugugu cave
You have to dig it out under ground and you only get it in Pokemon pearl.