Prince William at Klosters // Prince William at Klosters(PA)

'Tis the season to be jolly, at least if you're a celeb spotter. For winter is the time of the year when flurries of the rich and famous ascend into the mountains to frolic in the snow. And to the delight of fans, they generally make tracks to a surprisingly small - and predictable - handful of ski retreats.

So popular are some locations that you're almost guaranteed to share the slopes with an A-lister or two. Of course, knowing where they are is one matter and crashing their après ski shenanigans is another; you'll need to invest some serious cash to stay at these resorts.

But if money's no object and you fancy running into Posh on the piste, pottering around on the kiddies' slopes with Brangelina's brood or raising a glass of glühwein to Gorgeous George this winter, we have the scoop on where to do it.