Middlesex Fells Reservation, Skyline Trail, Stoneham, MA
Eleven hiking trails of varying difficulty traverse this 2,575-acre park. Take the popular 6.9-mile Skyline Trail to the observation tower atop Pine Hill, where you’ll enjoy city and harbor views.
Level: Moderate | Distance from Boston: 10 miles
Stoneham, MA, 617-727-5380, website.