General Inquiries

Main Office:
200 Harbor Road
Stony Brook, NY 11790

Programs / Barn:
60 Shep Jones Lane
Stony Brook, NY 11790


Katharine Griffiths, Natural Connections

Kayla Kraker, Nature Initiative

Sue Wahlert, Seedlings


From the Long Island Expressway :
Take EXIT 62 (C.R. 97, or Nicolls Road) NORTH until it ends at 25A in Stony Brook. Turn LEFT onto 25A and proceed approximately 1.5 miles to Main Street. Immediately before the stoplight, bear RIGHT onto Main Street. One block ahead on the LEFT is Harbor Road.

Parking is available along Main Street, on Harbor Road, and in the village shopping center just past the park on Main Street. The park’s boardwalk entrance is on Harbor Road across the street from The Grist Mill.

COVID-19 Notice:

The World Health Organization has declared the COVID-19 disease, known as the coronavirus, a pandemic. During this time, we ask that all preserve goers use additional precautions to protect their health and safety and that of those around them.

At this time, the preserve remains open. We ask that all preserve goers take extra precautions to stay healthy and safe. The Governor recommends that healthy or sick, all New Yorkers need to stay home as much as possible.

Avalon has chosen to postpone all public programming until further notice.  We are continuing to monitor the situation and will stay up-to-date on state and local recommendations.


The Harbor Road boardwalk entrance will be closed beginning February 1 as we restore and renovate the habitat. Trails east of Rhododendron Road, including the labyrinth, will be inaccessible. The remainder of the trails will be open and can be accessed from Shep Jones Lane where alternate parking is available.