Unbelievable spa experiences: get pampered

Perched on a treetop, 20 feet underwater, at the top of a New York skyscraper or hidden in the Himalayas, hotels compete on originality, enormity and luxury in order to attract travellers to their spas. At a time when even the smallest jet bath, shoved into the corner of the basement seems to count as a 'wellbeing centre', here is our selection of real, out-of-the-ordinary spas. We know that money might be tight at the moment but that's even more reason to make the smart choice, one that you won't regret having forked out for. Sit back, relax and enjoy!