Where to go in January to beat the post-Christmas blues 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 Post-Christmas, there’s something far less jolly waiting on the other side of presents – the depths of British winter. But while the January blues are on the horizon