Minecraft Pocket Edition (Complete Version): How to die in Creative

First step: Dig a gigantic hole until you get to the end that is blue.

If you are not in flying mode you will fall and die.

That's what you want but if you are in the flying mode and you go down, when you look up, you will see the sky.

Also if you try to dig what's above, you will see what you are digging and what you've already dug.