WALES //(Eryri National Park) Snowdonia National Park in North Wales brims with beauty and myth. Snowdon itself is a mountain for anyone - those who don't want to walk up can take a train, while hikers can follow numerous trails. But there are several other ranges in this extensive upland: try craggy Tryfan, with invigorating scrambling routes, or Cader Iris, home to legends of bottomless lakes and giants. Then there are the swathes of sandy beaches, the world's fastest zip line (Penrhyn Quarry) and a cutting-edge inland surfing lagoon (Adventure Par Snowdonia).