America's Best Urban Running Trails
© Michael Dwyer / Alamy
Charles River Bike Path, Boston
Boston’s most cherished running route, this 17.1-mile path lines both sides of the Charles River in Boston’s Back Bay and Cambridge. A favorite four-mile stretch starts at the Esplanade (a historic park that’s home to the Boston Pops’ Fourth of July concert and fireworks extravaganza), then heads west to cross the Charles at the Mass Avenue Bridge. Turning east then brings you to the Museum of Science, and across the river once again to return to the Esplanade. In spring and fall, you’ll likely see the Harvard and MIT crew teams sculling in the river; but even in the middle of a winter snowstorm, you’ll be sure to see other joggers (since the city hosts the world-class Boston Marathon, it takes its running very seriously).