Trails are open 7 days a week, from dawn to dusk 


The Visitor Center Exhibits are open Thursday-Saturday, 10:00 AM – 3:00 PM

Visitor Center Restrooms open daily 8:00 AM – 7:00 PM

Mashomack program participants show off their nature self-portraits.  © Rebecca Kusa/TNC

Spring Has Sprung

Spring has arrived at Mashomack and can be heard around the preserve, from the chorus of spring peepers hiding in the freshwater kettle ponds to the familiar calls of ospreys returning from their southern migrations. Join us at the preserve to experience the joys of spring and celebrate your love for  Earth all month long. Whether walking the trails, joining for a special program, or volunteering to help in nature, let’s celebrate Earth month in April–and all year long!

Earth Day Celebration

Date: Saturday, April 20th, 10 AM – 3PM (drop-in)
Do you love nature as much as we do? Come down to the Mashomack Visitor Center and join our team as we celebrate Earth Day. Head out on the trails with a scavenger hunt, make your own native seed bombs, enjoy some nature-inspired snacks and meet some birds of prey with our friends at the Quogue Wildlife Center from 1 –2 PM. Drop-in. All are welcome.


Saturday Seedlings: May Flowers: 

Date: Saturday, May 4th, 10 – 11 AM
Join us as we explore the natural world and learn about different animals and habitats at Mashomack. Activities will include crafts, snacks and/or exploring our trails. Ages 4-8. Advanced registration required.


Volunteer Barb installing new benches in our teaching pavilion with Mashomack team member, Cindy, lending a helping hand. © Rebecca Kusa/TNC 

Mashomack Volunteer Spring Welcome 

Date: Saturday, May 11th, 10 AM – 12 PM 

Interested in volunteering with us? Mashomack has new and exciting volunteer options this year including small mammal camera trap monitoring, event prep, Visitor Center exhibit guides, and more. Opportunities for both teens and adults. Come meet, mingle and learn about the work we do and how you can help!
Light refreshments provided.  Please RSVP to  MashomackPreserve@tnc.org. 


Mashomack’s Environmental Explorer and Seasonal Conservation Education Assistant, Willow, working to create a wildlife corridor model on the beach. © Rebecca Kusa/TNC

Environmental Explorers – Summer 2024 

Only a Few Spots Left! Environmental Explorers 2024
Session 1: July 8-11
Session 2: August 12-15
*New, extended time* 9:00 AM – 3:00 PM. Scholarships available.
Registration is open. Click here to sign up.
For even more programs, visit nature.org/events 


April Book in the Woods 

Here We Are: Notes for Living on Planet Earth by Oliver Jeffers 

Explore what makes our planet so unique and how you fit in. There’s a lot to learn about life on this planet!  Come take a self-guided, half-mile walk and read as you go. 

                               © TNC

Follensby Pond Transforms Conservation — Again

We are thrilled to announce the protection of 14,600-acre Follensby Pond, nestled in the heart of the Adirondacks. This historic agreement—one of the largest ever in New York State—establishes a first-of-its-kind freshwater research preserve, provides new public access for recreation and recognizes the long-term relationships Indigenous Peoples have with the region.


The Nature Conservancy works across New York, the United States and in 79 countries and territories to conserve the lands and waters on which all life depends. Learn more about our work at nature.org/NewYork

Join us today


Copyright (C) 2021 The Nature Conservancy. All rights reserved.


The Nature Conservancy
79 South Ferry Rd
PO Box 850
Shelter Island, New York 11964



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