The ranking is by Big 7 Travel, which generated it by analysing Blue Flag locations, beaches social media popularity and the thoughts of its editorial team.
Welsh beach named among best in world walesonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from walesonline.co.uk Daily Mail and Mail on Sunday newspapers.
Six years ago Chris Lewis made a "big change" after slipping into depression and anxiety and decided to walk the entire length of the UK coastline. His journey has raised hundreds of thousands of pounds to support the armed forces.