As someone who lives in the center of the city, I know how hard it can be to escape. The closest and cheapest alternative? Go to the Boston Public Gardens! They really are so beautiful this time of year, so enjoy it while you can!
Plants really effect air quality, and air quality really effects humans! All of the plants make for oxygen rich air that’s good for your body and brain. So if you feel cooped up in the city head over to the gardens!