First you need to go to the light house (it should be easy to find) then ride the elevater to the top. talk to the person in the center of the room. then ride back down go to the GYM beat it. after that prosseed to the pokemon center go all the way to the end of the road there will be a women on the beach talk to her she will have the HM: (water-fall) then you will also be able to go to the POKEMON LEAGUE.
YOUR WELCOME!!!