When Peter Knottenbelt crossed the finish line at the Midmar Mile nearly 53 minutes after he started, it was the culmination of a journey that started, in earnest, more than a year before.
On January 6 2018 he was in the Olifants River with his granddaughter when his life changed forever: the recently-retired former University of Johannesburg mining department lecturer stood on the back of a crocodile.
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