This hilly, forested, 26-mile-long city on the southern tip of Lake Superior is a magnet for aerobic fiends who train year-round on the city’s 72 miles of Nordic ski trails, the epic Willard Munger paved cycling trail, 81 miles of running and hiking trails, and 30 (and growing) miles of urban mountain-bike trails. At the southern end of town are two brand-new 500-vertical-foot, IMBA-designed downhill flow trails at Spirit Mountain ski resort. Offshore there are three quadrillion gallons of Lake Superior water, shipwrecks, and salmon and trout. Book a lakeside room at Fitger’s Inn (doubles from $135). Two hours north are the Boundary Waters Canoe Area Wilderness, one of the worst-kept but least-spoiled secrets in the country.