Well after the pokemon league there is another route behind it. If you have ever seen it on the map and wondered what it is, listen up. Go back to victory road and into the cave. Go past the bridge and down using rock climb then go up to an old man. Then go left and up the stairs and then go across a bridge into another cave opening. Then, If you have never been this way before you will see a girl and a ! will go above her head. You will have to escort her through this section of the cave. You will have to go past 6 or seven trainers and you will see the exit to the cave at the end. Go outside and the girl will leave you. You are now in route 224 and if you explore around for a while, You will have a few battles and you will see a big stone rock. This is the rock where you get Shaymin. For catching Shaymin, you will need an action raplay. Happy Gaming!