Usually underground. If you get 10 of the same color bring them to a girl in the marsh for a TM.
it doesnt show it in pkmn diamond, but in pkmn pearl
There's one waterfall near the PKMN League (The Victory Road).
enter the mount cronet in snowpoint hike there and youl find the top
It would be the same as PKMN Pearl & PKMN Platinum. In Diamond, you can get it in The Underground & Route 213. In Platinum, you can find it in the Solaceon Ruins. You must have a Poliwhirl, a Shellder, a Staryu, an Eevee, or a Lombre seeing you want a Water Stone.
action replay
in the hall of origin
You train.
To be honest with ya i am not sure.
you cant....................... but you can if you get pkmn diamond or pearl
in the game
you have to trade it with pkmn diamond
upstairs at any pkmn center.