And before they reach the end, these Olympians have to go completely underwater to execute a 360-degree Eskimo roll. This new event is Kayak Cross, with elements that sound like a local amusement ...

Kayak cross starts with timed solo runs but then gets really wild. From then on, paddlers go head-to-head in knockout heats in which four boats launch from a steep ramp, pick their way down the course ...