What to do after the battle tower in Pokemon Sapphire?

go to profecer rowan and upgrade your pokedex to national dex then go to fight area again this time go north west and go north don't enter the door instead talk to the fisherman and he will give you the super rod if you say yes then go back to victory road you will see the cave not blocked enter it use defog talk to miley she will automaticly go with you then go enterthe next cave then the next cave but this one is a complete maze after that hard work enjoy out of this place get the rare candy and razor claw in route 224 if you have the walk through anything cheat go at the end of route 224 then walk through it and you will find a shaymin then again you will find another shaymin then exit and fly to fight area then go to the place where you got your super rod then enter the door that is route 225 make your way pass that route (it gets tricky dough) then get everything you need at survival area then go to route 226 and go all the way east then go up to reach route 227"s peak then go in stark mountain and pass (it may take long) then go all the way down again reach resort area after passing passing route 228 and route 229 then your last route route 30! be sure while Surfing to use your super rod to geta rare kyogre that knows water spout and a wailord that knows water spout--------------enjoy!----------------