a man’s home is his castle, a private island is his kingdom. And while you don’t have to be uber-wealthy to buy an island—a small one can be had for about $50,000—many of the globe’s most exclusive properties are owned by billionaires. The trend to own a slice of paradise dates to the 60s when the late shipping magnate Aristotle Onassis married former First Lady Jacqueline Kennedy on his Greek island Skorpios, according to Chris Krolow, chief executive of Private Islands, a Toronto-based company that specializes in private island real estate and whose website currently lists about 750 islands for sale worldwide.“ ‘Islomania’ is not your typical investment. It’s very much a purchase of passion. It goes beyond cachet: it allows owners to make their own mark, to do something that no one else has done.”
Here’s a sampling of some billionaire-owned private islands, from pristine secluded havens—ideal for modern day Robinson Crusoes—to tropical eco-friendly luxury resorts.
Lanai, Hawaii
Oracle ORCL +1.10% billionaire Lawrence J. Ellison purchased nearly all of the Hawaiian island of Lanai in 2012 for a widely reported $300 million. He plans to transform his 98 percent of the 141-square-miles, known as “Pineapple Island” (it was once considered to be the world’s top supplier of pineapples) into a premier tourist destination and a better place for locals to live, all in an economically viable, totally green way, news accounts say. Goals of one of the world’s richest people for “a prosperous and sustainable Eden in the Pacific” include everything from widespread renewable energy and charging stations for electric cars to growing and exporting gourmet produce and creating organic wineries. And perfume will be made the traditional way, like in France – from flowers.

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