I've already answer this question (even though you posted this question before your other one). Your suppose to surf to the other side. Then you will later encounter a cave. After you go through the cave, you will see the building in which the Pokemon Elite Four members are at.
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I've already answer this question (even though you posted this question before your other one). Your suppose to surf to the other side. Then you will later encounter a cave. After you go through the cave, you will see the building in which the Pokemon Elite Four members are at.