The Teifi Valley Trail and The Fishguard and Goodwick Heritage Trail open in the next few months 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 For those itching to get their walking boots on, Wales is packed with trails to explore, making it a go-to for intrepid hikers