Turbulence training
From Openwaterpedia
noun - Turbulence training is swimming in rough water, wind-whipped conditions in open bodies of water with whitecaps in preparation for an open water swim, channel swim, or marathon swim.
Usage
It is best to train in the afternoons when the winds get stronger and the whitecaps come up for turbulence training.
Origin
Part of the Pyramid of Open Water Swimming Success, circa 2008.