London's social set, including party-loving royals, now has a new playground. 

And by the looks of bleary eyed Chelsy Davy plenty of fun was had as Whisky Mist opened its doors for the first time last night.

Prince Harry's girlfriend emerged from the hot new haunt looking rather dishevelled, her hair falling across her face as she attempted to make a sharp exit.

Late night exit: Prince Harry's girlfriend Chelsy Davy heads home looking rather dishevelled after partying at new hotspot Whisky Mist

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Good night wast it? Chelsy looked a little bleary-eyed 

Princess Beatrice and her boyfriend Dave Clark were among the crowd, along with her Sarah Ferguson and companion, Findus tycoon Geir Frantzen.

Director Guy Ritchie - minus his wife Madonna - and 'Queen Slone' Henry Conway also joined in.

The club is the latest venture by the owners night spot Mahiki, which, with the help of club promoter Guy Pelly, regularly attracts the likes of Prince Harry, Prince William and Kate Middleton.

Ready for fun: Princess Beatrice and her boyfriend David Clark at the Whiskey Mist at Zeta in Mayfair last night

Owners Piers Adam and Nick House have previously said their plan was to attract 'private bankers who live in Kensington and St John's Wood' rather than socialites.

Mr House said: 'Whisky Mist will be highly aspirational, and a bit more serious than Mahiki.

'It's not going to be a young place, the clientele will be 40-year-old guys. The market we're going for is very international.

Night on the town: Sarah Ferguson and her companion, Findus tycoon Geir Frantzen

Roll up, roll up: Guy Ritchie and Henry Conway

'Their natural drink is whisky, which is seen as being chic everywhere apart from Britain.'

Despite targeting an older demographic, the young crowd - Chelsy, Beatrice and co - certainly weren't deterred, suggesting that despite the owners' best intentions, those pesky socialites might not be far behind.

Beatrice was also celebrating her boyfriend Dave Clark's 26th birthday and the pair left with a bizarre inflatable monkey balloon.

Three's a crowd: Earlier it was a tight squeeze for Bea, Dave and their inflatable monkey as they left the Dorchester hotel