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NOTICE: Today's Event has been RESCHEDULED. Check details on the Events page.
NOTICE: Today's Event has been CANCELLED.

Membership Only Events
Events are for members only unless otherwise indicated.
Please RSVP. For details, contact us at 201-784-0484 or email us at pnanaturalist@gmail.com.
Upcoming Events


Apr 24, 2026, 7:00 AM – 9:00 AM
This is the first in a series of four Friday morning bird walks. Beginners welcome. Bring binoculars. Rain cancels.


1 day to the event
Apr 25, 2026, 8:00 AM – 9:30 AM
Expert Birder and Naturalist Evan Zupfer will share the basics of birding as we will look for early spring migrants
inside the Sanctuary. Bird watchers of all abilities are welcome. Bring binoculars. Rain cancels.


1 day to the event
Apr 25, 2026, 1:00 PM – 2:00 PM
Take a hike to two of the most spectacular vistas in Greenbrook.


2 days to the event
Apr 26, 2026, 12:00 PM – 3:00 PM
An open house, giving non-members the opportunity to visit and learn about Greenbrook Sanctuary.
Call 201-784-0484 or email the naturalist pnanaturalist@gmail.com for more information, Rain date May 3rd.


7 days to the event
May 01, 2026, 7:00 AM – 9:00 AM
This is the first in a series of four Friday morning bird walks. Beginners welcome. Bring binoculars. Rain cancels.


8 days to the event
May 02, 2026, 11:00 AM – 12:00 PM
Come and learn about some uncommon and unique trees found in Greenbrook


8 days to the event
May 02, 2026, 8:30 PM – May 03, 2026, 9:30 PM
Hike through the Sanctuary during the first Full Moon of May called a Flower Moon. See May 31 for information
about the second full moon hike in may.


9 days to the event
May 03, 2026, 12:00 PM – 3:00 PM


14 days to the event
May 08, 2026, 7:00 AM – 9:00 AM
Join our naturalist for an early morning bird walk as spring migrants return to Greenbrook Sanctuary.


15 days to the event
May 09, 2026, 8:00 AM – 2:00 PM
Join us on the biggest day of birding of the year. Help us find as many bird species as possible in the Sanctuary.
Lunch break at Arboretum point. Beginners always welcome.


Multiple Dates
15 days to the event
May 09, 2026, 10:00 AM – 11:00 AM
Come join Nancy Hoffman, a lifelong educator of Tai – Chi, as she teaches the basic moves and tenants of Tai – Chi.
This is a refresher course for those who wish to brush up on the basics, however all are welcome.


21 days to the event
May 15, 2026, 7:00 AM – 9:00 AM
Expert Birder and Naturalist Evan Zupfer will share the basics of birding as we will look for early spring migrants
inside the Sanctuary. Bird watchers of all abilities are welcome. Bring binoculars. Rain cancels.


Multiple Dates
22 days to the event
May 16, 2026, 10:00 AM – 11:00 AM
Come join Nancy Hoffman, a lifelong educator of Tai – Chi, as she teaches the basic moves and tenants of Tai – Chi.
This is a refresher course for those who wish to brush up on the basics, however all are welcome.


Multiple Dates
29 days to the event
May 23, 2026, 10:00 AM – 11:00 AM
Come join Nancy Hoffman, a lifelong educator of Tai – Chi, as she teaches the basic moves and tenants of Tai – Chi.
This is a refresher course for those who wish to brush up on the basics, however all are welcome.


36 days to the event
May 30, 2026, 10:00 AM – 11:00 AM
Take a walk with Naturalist Evan J. Zupfer as he demonstrates how the White-tailed Deer have changed the landscape and
habitats of Greenbrook Sanctuary.


37 days to the event
May 31, 2026, 8:30 PM – Jun 01, 2026, 9:30 PM
Hike through the Sanctuary during a rare event, a Blue Moon. The second full moon in the same month which only
happens every three and a half to four years.
Membership is required to enjoy our park as well as all the events.
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