Grounds open from dawn to dusk. Visitor center with exhibits and gift shop. The original 500 acres of the preserve, established n 1931, have gone undisturbed since the late 1800s. An additional 1500 acres have been added within the watershed since 1967. Self Guided trails open daily during the summer and weekends only during the remainder of the year.
Grounds open daily all year from dawn to dusk.
Nearly 5.000 acres of tidal wetlands and uplands occur at Piermont Marhs, Iona Island, Tivoli Bays and Stockport Flats. The Bard College Field Station serves as the Reserve's headquarters. In addition, Iona Island has estuarine interpretive exhibits at the Bear Mountain Trailside Museum and Zoo. Piermont Marsh Component - located at the southern edge of the Village of Piermont 4 miles south of Nyack in Rockland County. The site occupies two miles of shireline south of the mile long Erie Pier and includes the mouth of Sparkill Creek and extnesive tidal shallows.