HX Expeditions is letting guests step back in time Get Travel Insider with Simon Calder. A newsletter packed with tips, deals, inspiration, and the latest travel news Get the Travel Insider newsletter with Simon Calder Get the Travel Insider newsletter with Simon Calder Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Forget luxury suites full of high-tech gadgets – an expedition cruise line is inviting guests to sleep in