Middlesex Fells Reservation Loop Trail is a 8.2 mile moderately trafficked loop trail located near Medford, Massachusetts that features a lake. The trail is only recommended for very experienced adventurers and primarily used for hiking, walking, birding, and mountain biking. Dogs are also able to use this trail but must be kept on leash.
dogs on leash
It gets pretty treacherous but it's really cool. Don't go alone and make sure your phone is charged up. I got lost once.
Great Hike, I would call it moderate, appropriate trail runners or boots necessary.
Great hike and so close to Boston.