Whitewater kayaking is a water sport that involves paddling a kayak along a whitewater river. This style of kayaking can range from relatively easy journeys on rough water, to extremely technically difficult runs on intense rivers. Whitewater kayaking is often simply a recreational sport and a way of testing your own ability to navigate your kayak along a testing river. But it can also be a competitive sport where kayakers take turns to try to produce the quickest time over a set course. .