A shorter swim is likely to be welcomed by kiwi triathletes on the start line at the Cape Town ITU World Series triathlon this weekend.
The races this year will be across the sprint distance, rather than Olympic in previous years.
Kiwi triathlete Simone Ackermann says that's down to the freezing cold water temperature.
She says the first two years they had it an Olympic distance but the 11-12 degree water temperature has meant it is now a sprint distance.
Racing starts on Monday morning, with Olympic qualification points up for grabs.