I went to Walden Pong last weekend with my family. It is a great way to spend a quiet afternoon. Parking is $5 per car and entrance is free. You can walk around the lake and just enjoy the scenary. A lot of people swim in the lake, lay out in the sun, or play frisbee, etc. There is also a trail that goes around the lake and you can jog it. You can visit a replica of Thoreau's house (basically a small hut), and there is a little bookstore right by the pond too. All in all, I recommend Walden Pond for a quiet or romantic afternoon, away from the hubbub of Boston city life.
Pros: Quiet, Serene, Beautiful getaway
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