Only four days into the 3-week, 228-km walk along the Great Wall of China and Olivia Newton-John's team of fund-raisers is already suffering sore knees, pulled muscles and twisted ankles, and realizing that this will be far more challenging than expected. No one is giving up yet, though, on a goal to raise $5 million towards the building of the Olivia Newton-John Cancer Centre in Melbourne.
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