Note: If you are going to try to catch Dialga or Palkia (diamond or pearl) make sure you have a bunch of Ultra and Dusk balls!!
First,
Fly to Hearthome city and head west, Route 208. Enter the cave and once inside, you should go north.When you first enter the cave, you need to head west to the opposite side.
Once you reach the west entrance, head north and surf across the pond. Use rock climb to reach the stairs up. In the next room:
Go-
North, West, South, Upstairs, North, West over bridge, down stairs, up north, stairs,up stairs, cross bridge, down stairs, down stairs, upstairs and in cave door.
In the
Next room: Up stairs, up stairs
Again
Next room: up stairs, north, west, south, Out.
Now you are outside. Follow the path and use rock climb when you get there.
Now
don't use rock climb again, instead, head west and through the grass until you reach another cave.
Inside, use rock climb, follow the path, down the stairs
then east, you're out of the cave.
Now, through the grass, down the stairs, rock climb west.
Again
Down the stairs, through the grass, keep going west. At one point you find another cave like three steps to the south. Enter.
There is only one way to go through here so keep following the path, eventually
you emerge at the very top.
Here waits for you three batlles and a Legendary (Dialga for Diamond and Palkia for Pearl)- one double battle and one with Cyrus.Dont worry coz your rival will show up to help you on you Double battle and he will heal your Pokemon up after finishing the D.B for you Boss battle.
Don't use the master ball- use ultra balls or dusk balls whenever you can. It takes paitence but these balls work- don't waste that master ball!
Good luck!
If you're playing Diamond, the Pokemon in Mt. Coronet should be Dialga. You have to get the 7th badge before you are able to get to the top of Mt. Coronet where Dialga is though.
On top of Mt. Coronet.
go to the top of mt coronet
go to top of mt. coronet capture dialga go to sunyshore city and you can get in
Go through Mt. Coronet to almost the top of your map, there will be a route with sinking snow in it.
If you're playing Diamond, the Pokemon in Mt. Coronet should be Dialga. You have to get the 7th badge before you are able to get to the top of Mt. Coronet where Dialga is though.
On top of Mt. Coronet.
He's in the Galactic Veilstone Building, and on top of Mt. Coronet. But not after he leaves Mt. Coronet.
in Pokemon diamond
go to the top of mt coronet
There is a map of Mt. Coronet in the Sinnoh region.
mt coronet
Tangela is a swarming Pokemon you can only get it on certain days. You can swarm it at the top of Mt. Coronet.
Mt coronet is only in diamond or pearl or platinum not in firered.
top of mt. coronet get dialga
You get it in Mt. Coronet.
mt. coronet