i think you get it after you beat the gym leader and you know that woman that you see when you go to the elite four? yes, you get it from her (the gym leader from another reigon)
when you beat volkner walk to the beach where jasmine is and talk to her she will give you it
you do need hm waterfall for mt. conet.There's a waterfall in mt.conet
you will get it from the girl at the 8th badge gym she will give you the hm 07 waterfall
U don't go through the waterfall, u go over the waterfall. The goal is to have the HM waterfall. This HM allows ur Pokemon to climb the waterfall.
there is no dive HM in DP but the water related ones are surf and waterfall
That HM is called Waterfall.
You can get the HM waterfall in Pokemon Diamond and Pearl by beating the 8th gym leader and talking to Jasmin by the little beach. She will give it to you.
You can find Waterfall in the Dark Cave.
Sunnyshore City. Have fun looking for it.
The HM Waterfall, which is given to you by Jasmine in Sunyshore city
You can find the HM Waterfall in the Ice Path
you can find him in waterfall pond with HM dive or waterfall.
To my knowledge i don't think there is a waterfall in Pokemon yellow and it is quite irrelevant to the storline if there was one. If you mean a HM named waterfall...i think your on the wrong game, only pearl and diamond have waterfall HM...i think. There are only 5 HM's in Pokemon Yellow Flash, Cut, Fly, Surf, Strength.