The Russian magnate Roman Abramovich acquired St. Petersburg’s New Holland Island back in 2010. He bought the already developed island with the purpose of building a $400 million art museum.
The island had reopened to the general public in a reduced capacity in 2011 before becoming a year-round public area in the summer of 2016.
The cellphone tycoon Craig McCaw and his wife together own this 780-acre island just beside the coast of Vancouver. With such luxurious facilities as a private harbor and spa, it's a fantastic private retreat fit for a billionaire.
It's also home to the primary residence mansion, a golf course, and an airstrip. It was later listed for an impressive $75 million.
Paul Tudor Jones
The Hedge fund manager Paul Tudor Jones owns a triad of private islands. It's quite interesting that three islands spell out his initials when seen from above. Rumor has it that his islands are human-made, but that remains unclear.
Paul's trio of islands is part of a 3,000-acre wildlife reserve he owns on the Chesapeake Bay in the state of Maryland.
The Emir of Qatar
The Emir of Qatar has set aside a not-too-modest amount of $11 million to pay for this collection of six Greek islands in the Ionian Sea.
The Emir of Qatar is the king and leader of the state of Qatar, and since June 2013, Tamim bin Hamad Al Thani is the current Emir.
Louis Moore Bacon
The fabulously wealthy Hedge fund manager and investor, Louis Moore Bacon, gained the lease for Robins Island. Located beside the coast of Long Island, it cost $11 million in 1993.
Louis Moore Bacon is also a conservation philanthropist who created The Moore Charitable Foundation to provide financial aid to nonprofit organizations that strive to conserve and protect the environment and wildlife.