Robin Williams – Whitestone Island
As you might expect, a few celebrities go to great lengths to keep their private islands out of the public eye. The logic is sound: why purchase an entire piece of land to hide from the world and then announce it to the world? Putting yourself in that position is a recipe for disaster. Steven Spielberg and Robin Williams, on the other hand, kept quiet about the location of their island.

He may have owned an island off the coast of British Columbia. When pressed on the subject, the much-loved comedian would quip that he’d heard he owned an island from someone else.