U need to open the sealed chamber at the current... u will need: wailord, relicanth and a pokemon that knows how to surf and dive and also dig... try to find a dark patch that you can dive in, it might be hard but don't give up. after you find it, there should be a braille puzzle, dive up!!!! then at the end of the cave use dig.... after that get in and read the furthest braille puzzle... switch relicanth at the very first slot and wailord at the very end... read the braille!!! there should be an earthquake. now your mission is to find 3 rock patterns that where the regi's live