From the game Golden Sun: The Lost Age for the Game Boy Advance
Right when you arrive on the island to the north east where there is the moutain with the dragon and the village, don't go to the village. Instead, go to the moutain, fight the dragon, and lose the match (it arrives when you are not strong enough). You will be in the last village your visited, but your boat will be on the island's beach! To get out of this, you will need an Action Replay (unless there is some other solution that hasn't been thought of yet...)
Submitted by: link_enfant