High in the South Tyrolean mountains, Daisy Lester unwinds at Hubertus, a spa hotel with architecture that wows 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 Famous for its glass-bottomed sky pool and floating ‘Heaven & Hell’ spa, this chalet-style hotel blends luxury