I believe that is the end of the story. The main things to do after that is battle in the Battle Frontier, explore the Survival Area and Resort Area, and continue to train your Pokemon. The elite four will be tougher after you beat them the first time, but they are eventually extremely easy once your Pokemon are a high enough level.
In the Survival Area, your rival will battle you on Saturdays and Sundays. Gym leaders and other NPCs will also rematch you.
go 2 the pokemon league + beat cynthia
you automatically get it if you walk north in sunyshore city. However, you must beat Volkner first.
Tristin F. was the first person in America to beat Pokemon platinum. She beat it on Nov. 7, 2009.
I believe you have to win the battle against them to pass... I wouldn't know, to me it was just like any other random battle.
Go to the beach, under the gym, where you'll find a little girl who gives you waterfall after you cleared the gym.
you have to beat the Pokemon champion and later on in the game you will complete it
Use ground and grass type moves to finish him off.
Volkner
You get it from Volkner. You will need to get the HP Waterfall to make your way up to the Pokemon league. I hope you get it . And to beat Volkner you need to have a Pokemon that uses Hydo Pump, Surf HP, Brine, and whatever.
you automatically get it if you walk north in sunyshore city. However, you must beat Volkner first.
volkner
Volkner is located in Sunyshore City.
volkner 8th leader
Sunnyshore City.Defeat Volkner first...
volkner doestnt give you it but when you beat him go to the beach n a woman gives you it !
in Pokemon platinum: after you beat volkner go to jasmine she will give you waterfall. use surf at the beach where jasmine is (up the screen) keep going beat all trainers then (later verry later) you will see a waterfall use the move waterfall I forgot how to get through victory road but after you will see the elite four. No ceating
The eighth gym leader of Sinnoh, Volkner, returns to battle you again in Platinum after you beat the Elite Four. When you get to battle frontier, you and your rival have a double battle against Volkner and Flint, an Elite Four member.
Beat Volkner of the Sunnyshore city gym.