The Midmar Mile held at the Midmar Dam north of Pietermaritzburg in KwaZulu Natal. The Midmar Mile is the worlds largest open water swimming event. The Midmar Mile draws thousands of competitors each year, both serious international athletes and Olympic medallists to recreational swimmers.
The Midmar Mile swim gains its name from its location (the Midmar Dam) and it's distance (+/- one mile). A unique feature of the race is that while the distance covered is always a mile, depending on rainfall and the water levels in the dam, the distance swum varies from year to year. In years with poor rainfall, competitors are subject to the infamous Midmar sprint start: a bedlam of bodies sprinting across the muddy lake-shore and through the shallows until the water is deep enough to swim.