So if you have the big house in Alpine but want to be able to stay at your own place in the city quite a few nights a year, you should definitely consider a private residence club like The Phillips Club.

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Dubai is a Muslim country and the dance brand, housed at the new upmarket beach club Meydan at Jumeriah Beach Residence, is rather more restrained than the original.

BBC: Ibiza nights in the Middle East

P. privileges. (Exclusive Resorts, Case's luxury-residence club, will own and operate some of the units.) Since 30 percent of Miraval's guests are return customers, it seems a safe bet that there's a ready-made second-home market here.

FORBES: Ballancing Act

Dr Sylvia Earle is an explorer in residence for National Geographic, honorary director of the Explorers' Club and has led more than 60 expeditions worldwide.

CNN: Quest for exploration