Hall's Pond Sanctuary is one of only two natural ponds remaining in Brookline. Together with the adjacent Amory woods, it is the only land in North Brookline set aside for conservation purposes. The sanctuary, which is administered by the Brookline Conservation Commission, consists of the pond and its surrounding shores and upland. The total area covers approximately 3.5 acres.

While most of the land and water within the Sanctuary have been left in a natural state, there is a formal garden that was planted shortly after the turn of the century and cultivated ever since. The Sanctuary comprises a lush growth of trees, vines and bushes, which provide an excellent habitat and nesting grounds for a wide variety of birds and animal life rarely found in an urban setting.