Cubic Feet/Sec., the rate at which flowing water is measured in a river, documents 9 trips by boat through the Grand Canyon which Andrew Phelps made with his father and friends from 1979-2013. Cameras would become fixed elements of every trip, with thousands of images documenting over 4 decades of traveling through the Grand Canyon. For the first time, this deep archive has been edited to tell the story of one trip through the canyon. Time is thrown out the window as Andrew and his father grow older and the canyon stays the same. More than an adventure story of rafting through in the canyon, CFS a visual diary documenting these 2 lives in a beautiful, ancient landscape.