Their beautiful wood-carved goldleaf-painted sign on North Riverside Avenue may be new, but the Brinton Brook Sanctuary has remained as a 156-acre mixed habitat of open meadow, red-maple swamp, deciduous woods and a large pond with three miles of hiking trails, since 1957 (directions).
Get out for a hike. Go bird watching. Bring your leashed dog (and some trail baggies for pick-ups). In fact, the three miles of hiking trails in the Brinton Brook Sanctuary even connect to the Highland Trail, which is part of the Croton-on-Hudson village trail system (see map). But, as noted on thier website, there are no toilet facilities nor is picnicking allowed.