After you beat all the gyms, go north of Sunnyshore City and a girl will talk to you; she will give you HM 08, Waterfall.
After you defeat Volkner in Sunnyshore City, a girl on the beach will gift it to you.
I think you get it in Sunnyshore City from Jasmine at the top edge of town. If she doesn't give it to you, I'm still sure it's somewhere in Sunnyshore. you have to beat the Sunnyshore gym leader and then talk to Jasmine and she'll give it to you
no just like all HM's u need to obtain them you get waterfall the same way as diamond+pearl talk to jasmin on the beach at sunnyshore city.
cach pearl the legndary Pokemon
Surf North on the beach of Sunnyshore.
You can get one in sunnyshore city or underGround
there will be a man fishing in sunnyshore city
You canβt actually go through any waterfalls. You go up them by using HM Waterfall, which is gifted to you by Jasmine after defeating Volkner in Sunnyshore City.
sunnyshore city
sunnyshore city is were you find it
just get a swimmer and go to the top of sunnyshore
Go to Sunnyshore City and all the way at the top of the town, at the beach (or whatever you want to call it), there is a girl that gives it to you. First you have to beat the 8th, and final, gym.Then you go to the Pokemon league