The HM waterfall is in the ice cave, the cave you use to get to Blackthorn City to get the 8th badge. Just pick up every item that you can see in there and you will find it.
you can cheat and only get the last badge but apart from that you can only use waterfall as a move in a battle . you have to have the last badge
You cannot go through waterfalls but you can climb them with the HM waterfall and a Pokemon that can learn it... you will also need the corrosponding gym badge
Get your badge and go to the elite four. you must get waterfall.
You can't you just have to beat him and get it
You can find it in the Ice path but you can't use it until you get the rising badge
The HM waterfall is in the ice cave, the cave you use to get to Blackthorn City to get the 8th badge. Just pick up every item that you can see in there and you will find it.
You need 4 badges.
in crystal you must beat Clair then she'll tell you to go to the dragon's den, after answering some question's she'll come in and give you rising-badge, that will let you use waterfall. then exit area and she'll give you waterfall.
you will get it from the girl at the 8th badge gym she will give you the hm 07 waterfall
you can cheat and only get the last badge but apart from that you can only use waterfall as a move in a battle . you have to have the last badge
You cannot go through waterfalls but you can climb them with the HM waterfall and a Pokemon that can learn it... you will also need the corrosponding gym badge
Get your badge and go to the elite four. you must get waterfall.
once you have the beacon badge talk to jasmine at the place where there's sand. She'll give you the HM waterfall.
When you get Rayquaza to stop Kyogre and Grouden from fighting Wallace will give you waterfall but then you have to get sootopolis gym badge to do it.
You can't you just have to beat him and get it
Trade a Pokemon from an old version and make sure you have the fifth badge.