At seventeen kilometers, the last section of the Overland Track was one of the longest. It was also one of the easiest sections because it was flat, hugging the shore of Lake Saint Clair. That was a good thing: my right shin was swollen, and the pain had been mounting over the last few days. I figured I had shin splints, the result of carrying a forty-pound backpack that was missing its frame. (My backpack's frame had broken during the flight to Australia.) It was time for me to finish the trek and give my leg some much-needed rest.