Wauuu. This is an incredible secret!!!!!!! I'll try to do it very soon. You must record more secrets in this game, like the hole near the Nobilia's city on the desert. Thanks from Spain!!!!! Another fan of this game.
Huh, I've the NA version, and in my copy, he doesn't say anything or go underwater. You can just walk right on top of the water to the gold. Do you have to do something special?