"The region around the nation’s largest man-made reservoir offers boating, swimming, and paddleboarding set against expansive desert-water vistas; visitors can opt for leisurely vintage-style paddleboat outings, hike the 3.5-mile Historic Railroad Tunnel Trail that follows old construction rail routes, and easily connect to guided tours or photo vantage points at the nearby engineering marvel that created the reservoir." - Rob Kachelriess