Julia Bradbury heads for Iceland to embark on the toughest walk of her life. Her challenge is to walk the 60 kilometres of Iceland's most famous hiking route, a trail that just happens to end at the unpronounceable volcano that brought air traffic across Europe to a standstill in 2010 . With the help of Icelandic mountain guide Hanna, Julia faces daunting mountain climbs, red hot lava fields, freezing river... see more