Henry David Thoreau lived at Walden Pond from July 1845 to September 1847. Today, Walden Pond has been designated a National Historic Landmark and is considered the birthplace of the conservation movement. Park Interpreters provide tours and ongoing educational programs. Visitors can visit a replica of Thoreau’s one-room cabin and are welcome to swim, picnic, hike, use canoes and rowboats, fish, cross-country ski, and snowshoe at the pond.