Runners follow a point-to-point course for The North Face Endurance Challenge Washington, D.C. Half Marathon, which starts on the Virginia side of the Potomac River in Great Falls Park, and ends in Algonkian Regional Park. In between the two, runners follow the park’s Potomac Heritage Trail and Bootlegger Trail from one park to the other, passing by Seneca Park and Lowes Island along the way.
(MORE: The North Face Endurance Challenge: Washington D.C. event details)