Walden Pond in Concord, MA just outside Boston. $5 parking is the only cost, and this historic location where Henry David Thoreau spent two years living simply in a tiny one room house he built with his own hands a mile from the nearest neighbor in 1845-1847 has become revered as the home of the conservation movement.
It was on my bucket list of a thousand things to do before I die to read his book Walden on location. Okay - I did not read the whole book today, but as you will see in the video below, I brought it with me to read a little while I was there.
Swimming, fishing, and hiking are all available at Walden Pond, and best of all there is a wonderful history, which can not do anything but inspire you.
I think it should be on your list of a thousand things to do before you die. It was on mine, but I checked it off today. So, if you are looking for a Boston city break, I am not sure you've really had the full break without visiting the beautiful home of Thoreau's simple living.