Grab your head lamp and get ready to hit the trails under the stars. The Tread Nightly Trail Half Marathon & 4 Miler takes place at the U.S. National Whitewater Center, offering runners two distance options for this one-of-a-kind night race. One night of racing not enough? Camp out with us, then rise with the sun for the Tread Brightly Half Marathon & 4-Miler the next morning. This event is a part of the Half Marathon Series presented by La Sportiva.