[Capel Curig, Wales: June 30. Image via Getty ] CAPEL CURIG, UNITED KINGDOM – JUNE 30: Lady Alice Douglas swims in Llyn Mymbyr in the shadow of the Snowdon Horseshoe in North Wales on June 30, 2009 in Capel Curig, United Kingdom. Lady Alice has been swimming in lakes and rivers since she was a child and often takes a plunge with her children in the wild waters around her home in the Snowdonia foothills. Swimming in wild rivers and lakes is gaining in popularity across Britain with maps and books detailing the locations of the wildest outdoor swims. (Photo by Christopher Furlong/Getty Images)
