it depends where and far stuck u are so you find it in the blizzard in snowpoint city next to a house at the top.
Sunnyshore City.Defeat Volkner first...
To get HM7 (Waterfall) in Platinum you can get it at Sunyshore City talking to Jasmine at the north of the city.
HM7 contains the move Waterfall.
In Pokémon Ruby Sapphire and Emerald versions, HM7 contains the move waterfall. You can find the HM in the Cave of Origin.
It's in the ice path that leads to Blackthorn City.
Waterfall
Hm7 is waterfall, sorry im not sure where i found it though. :-)
buy the Pokemon platinum book
The 151st Pokemon is Mew and is unobtainable in Pokemon Platinum.
no you can't find a torchic egg in Pokemon platinum
try your best to find spirtomb in Pokemon platinum
There is not a route 233 on Pokemon platinum.