Here are the sun-kissed Caribbean shores to retreat to come winter 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 Islands that stretch from jungle to sea, with rainforests and rivers bordered by captivating coves – it can only be the Caribbean . Though balmy temperatures