A great place for a pre-Thanksgiving day walk is World's End. I first discovered this place when I was in college, and recently rediscovered it. Dogs are welcome (on leash).
The landscape was designed by Frederick Law Olmsted, who also designed Central Park and much of Boston's park system including the Fenway and Franklin Park. It was originally designed for a subdivision, but fortunately never developed.
The landscape is designed in the pastoral style: no structures, cars, gardens, or manicured gardens. Just carriage trails, beautiful trees, meadows, and views of Hingham Harbor, the Weir River, Boston, and the harbor islands.
It is owned by the Trustees of the Reservations, Massachusett's land conservation trust, an organization I have been a member of for the many years I lived in Massachusetts, and still am a member today.
I try to visit every time I am in the area.