How do you go to orange islands in Pokemon crystal version?

The Orange Islands are in Crystal version, or silve or gold. You need a GameShark, get the walk through walls code, and then activate it in New Bark Town. Walk on the water that is next to the town until you get to that rock, then go down to the bigger rock. You should be able to go through it. Then when you do, just keep going until you get to the Orange Islands.

Hope this helps.