Visit   |   Observe   |   Inspire

Trails open 7 days/week 8AM – 6PM

As the weather continues to warm up, please:

  • Respect social distancing guidelines
  • Avoid busiest times, Saturdays and Sundays 11 AM – 2 PM
  • Leave your pets at home, protect our wildlife

A bird’s-eye view of Mashomack’s grassland trails in early spring.


Program Registration Postponed

Registration for all programs, including Environmental Explorers and Young Naturalists, is postponed at this time. We look forward to sharing updates as soon as available.


Mashomack Musings, Connect with Nature

Looking for a quick, lighthearted read? Click the photos below to read about Eastern Bluebirds and Diamondback Terrapins on Shelter Island.


Shelter Island Nature Scavenger Hunt

Thank you for participating in our very first iNaturalist challenge. Your observations help TNC scientists study seasonal changes on Shelter Island over time.


Earth Day Every Day

We didn’t expect to celebrate Earth Day’s 50th anniversary from inside our homes. Yet, we find solace knowing the natural world presses on and will greet us with sunshine and flowers upon our return. The value of nature is perhaps more tangible than ever. Click the photo below to make a stand for nature.

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Support our work

The mission of The Nature Conservancy is to conserve the lands and waters on which all life depends.





AAQ Resource

1708 House, Southampton / Bed & Breakfast