Amateur paddleboarder Anna Jones explores the 'breathing' sea caves along the rocky shores of Pembrokeshire - where, in the right tidal conditions, the waves resonate through the rocks, making a noise like a dragon. Anna finds out about the increasing popularity of SUP, or Stand Up Paddleboarding, and learns how this new sport brings hidden risks. This is also the area where the last invasion of Britain happened, in 1797, when a local woman helped to defend Fishguard against the French army, armed only with a pitchfork
