One marathon is hard enough for some but try doing seven marathons in seven days. That was the task in front of dozens of athletes who descended on Queensland in July for the Bravehearts 777 Marathon with Mount Isa one of the venues.Bravehearts' 777 Marathon challenge, which seeks to raise awareness and funds for Bravehearts, a charity for the prevention of child sexual abuse and exploitation. The Isa marathon took place at Lake Moondarra along the bike track with locals invited to join national runners in distances of 7km or 14km or 21km or 42km.