Compared to the prices some big-name actors paid for their islands, it sounds like all-time-great actor Leonardo DiCaprio got away with something of a bargain in 2005 when he paid $1.75 for the rights to an island in Belize. It's also quite large compared to some of the other islands in this list, covering 105 acres in total and stretching over two miles from one end to the other, close to the Barrier Reef. We're surprised that he feels comfortable being this close to the sea, given what happened to him in 'Titanic!'
DiCaprio is well known for his interest in environmental issues, having campaigned and raised money for various green causes in recent years. It therefore shouldn't surprise anybody to hear that he turned his island into an eco-paradise, containing a nature reserve where animals can live safely. He's spent millions of dollars on it, and he's not even going to live on it himself!