First go to this Sekra Range keep on going untill your close to Fiore Temple.when your close to the stairs to Fiore Temple go to the right.Then you'll see a big boulder.you will need a Golem,Polywhirl,and Blaziken.use Golem's field move to crush the boulder then you will see a flower use Polywhirl's field move to grow the flower.then climb the flower then you will see a cave go straight in the cave. keep going forward you will see a giant ice cube use the blaziken's field move to melt it keep going you will see another cave then go in the 2nd cave keep going and then you will see regirock.enjoy.note:you must beat the game to do this cheat.