Independence Day! Let us help you celebrate! Please come join park staff at the Thoreau house replica to learn about the celebrations of July 4th in the days of Henry David Thoreau. This program is fun for all ages. Children must be accompanied by an adult. On hot summer days, holidays, and weekends, Walden Pond State Reservation often closes because of visitor capacity. Visitors are strongly encouraged to call the park headquarters (978-369-3254) and listen to the voice message before planning a trip or attending a program.