How do you get the HM Waterfall in Pokemon Fire Red version?

Answer 1

HM07, Waterfall, can be obtained when exploring the Ice Cave on Four Island. You need a Pokemon who knows Surf to enter the room with it and possibly a Pokemon who knows Strength. Push various boulders around and fall through a few holes and soon you will find the HM on a ledge.

When you get to island 4 go east untill u reach a pond you will need to surf up and u will fined a cave. inside there is a pond. surf up and when on land walk north. once your at this ice on the floor go to the left and up the last ice on the floor step on the ice twice and the ice will break and you will fall down next fined a way to get the latter south of the slippery ice when you get to the latter go up then go down and the will be a pokeball press (A) and that will be HM Waterfall