Some billionaires rocketed into space as Branson and Amazon founder Jeff Bezos have. Other rich travelers journeyed on a submersible to explore the wreckage of the ocean liner Titanic. For $250,000 to $300,000 a trip, Kent sometimes fields unusual requests including helping a Saudi prince fulfill his dream of flying a plane onto and off of an aircraft carrier. The experience was so demanding that Ackman's father expressed concern about the intended trip, not for his son but for another fund manager who had signed up to go. One person familiar with that excursion said it probably wouldn't happen again, in part because it was such a potentially risky undertaking.

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Persons: Eric Gaillard, Richard Branson, Branson, Jeff Bezos, ”, Alexandre Cymbalista, Geoffrey Kent, Kent, Goldman Sachs, Monica Heslington, Goldman, Melissa Biggs Bradley, Massimo Bottura, Bill Ackman, Whitney Tilson, Tilson, Ackman, Svea Herbst, Bayliss, Tatiana Bautzer, Julia Harte, Nupur Anand, Paritosh Bansal, Anna Driver Organizations: REUTERS, Twitter, Virgin Galactic, Virgin Group, Amazon, Wall Street, Abercrombie, Kent, Credit Suisse, SPECIAL, Goldman, Art Basel, Rubell Museum, Bank of America, Indagare, Ferrari, Navy, Svea, Thomson Locations: Nice, France, New York City, Branson, safaris, Botswana, Kent, Saudi, Africa, Miami, Art Basel, Modena, Italian, Mongolia, California