When separated from your boat in a swift river current, where should you float?

Floating on your back with your feet downstream is the safest position to adopt in a swift river current. This position helps to keep your head above water while allowing you to steer your body with your feet. By having your feet downstream, you can better anticipate and react to obstacles in the water, such as rocks or logs. It also helps to protect your head and torso from potential impacts, as your feet can absorb some of the force from any obstacles. Additionally, floating on your back conserves energy and allows you to breathe more easily, which is critical in a survival situation.