You get waterfall in the cave of orgin.
good luck
You can find Waterfall in the Dark Cave.
When you have HM Waterfall just use waterfall with the big waterfall ;)
you can find him in waterfall pond with HM dive or waterfall.
You can find the HM Waterfall in the Ice Path
In HeartGold, you can find the HM Waterfall in the Ice Cave.
you will find waterfall on the 1st floor on ice path
you get HM waterfall on route 18
there is no hm waterfall that i know of
you get it from jasmine after you beat volkner
You go to the icy side trail and you will see an item collect it and most likely you will find the HM waterfall
you find it in the Ice Path
you find it in the ice path