Michelle Tchea visits Switzerland’s Six Senses Crans-Montana to discover the range of unique wellness activities on offer, from biohacking belts to an alchemy bar Sign up to Simon Calder’s free travel email for expert advice and money-saving discounts Get Simon Calder’s Travel email Get Simon Calder’s Travel email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice This high-altitude luxury hotel in the French-speaking side