Thought about the Earth

I was thinking that the Earth has three oceans. A water ocean, a Magma ocean and a metal ocean made of Iron below the surface. 

I was thinking the oceans may have little floating islands in them with beaches. Perhaps there are even thunder storms below the ground in this subterranean world and things we can't understand like exploding car sized diamonds. We may never be able to see this world because it it too hot and too pressured. 

We only know that they exist because we use the shock waves from earth quakes to get a rough picture.