The island heart.

This picture is breathtaking.
It makes me question many things.

Was this island naturally shaped?
Who lives on it?
Does it have any permanent inhabitants?
How far is it from the next piece of land?
Where do the islanders rush to when there's a health problem?
Does it not sink when torrential rain hits it?

I know the answers can probably be found on the web.
But I can't help the pleasure in wondering.