Fjord swimming is an outdoor activity established in Sognefjord, Norway. It is based upon a swimmer and kayak buddy system. Even a strong and competent swimmer should be accompanied by a skilled kayak buddy when swimming a fjord. It is the responsibility of the kayaker to navigate the fjord and its currents on behalf of the swimmer. A kayak buddy keeps an eye out for dangers such as boat traffic and makes sure the swimmer completes his or her swim safely.