The Door County Half Marathon starts and finishes at Nicolet Beach, which overlooks the waters of Nicolet Bay on the park’s northeastern corner. From there, runners follow a winding loop route that heads first westward and then southward along the park’s northern edge, along Shore Road. The next few miles take runners into the park’s interior and remain hilly, with stretches later that head back toward the shoreline, and then back to the finish line.
(MORE: Door County Half Marathon event details)