Ocean Palace (Music)
This is for the music. You may be looking for the location.
"Ocean Palace", also known as "Undersea Palace", is a track composed by Yasunori Mitsuda for the game Chrono Trigger. It is the theme of the Ocean Palace, as it's name implies. It is the nineth track on the third disk from the original soundtrack. Proceeded by "Chrono & Marle - A Distant Promise", the track is plays just before "Sealed Door".