Things to See and Do

From hiking and biking, to horseback riding and kayaking, there are countless outdoor activities to enjoy in this area. What adventure will you go on today?



Watershed Friendly Homes

Every individual home has an effect on non-point source pollution in our watershed. Learn more about what you can do to minimize your impact with our interactive home guide.




Riverkeepers are on the frontlines of the global water crisis, using the advocacy model to stand up for everyone’s right to clean water. GSWA is the Waterkeeper Alliance Affiliate for the Passaic River.


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Downstream Adventures: Troy Meadows

August 12 at 12:00 pm
Our Downstream Adventures series continues with this glacial wetlands edition! Join us in visiting Great Swamp’s “sister-swamp” -- Troy Meadows is a 3,100 acre nature preserve in Parsippany-Troy Hills. Along…

Caribbean Rum Tour

August 24 at 5:30 pm
Join us for another legendary tasting event on Thursday, August 24th. This time, we’re presenting a Caribbean Rum Tour! Taste eight different rums and finger-foods from countries in the Caribbean;…

Great Swamp Gala & Silent Auction

October 12 at 6:00 pm
GSWA is thrilled to announce that we will honor Christine Todd Whitman, former Governor of NJ and Administrator of the Environmental Protection Agency, at our 2017 Gala & Silent Auction…

All Upcoming Events

From hikes to educational workshops, GSWA offers a wide variety of environmentally focused programs. We'd love to have you join us at an upcoming event!
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Featured Programs


In-School Education

GSWA is dedicated to teaching the younger generations about their impact on the watershed and river. Every year, we reach over 2,000 students through our in-school programming.


Water Quality

Every year, we publish a Water Quality Report Card to help the public understand the data we collect and the issues our watershed faces. Learn more about our recent report card.

Report Card

Land Stewardship

We steward our 53-acre deer-fenced Conservation Management Area in Harding Township by eliminating invasive species, planting native species, and optimizing it for wildlife.




GSWA in Action

Want to learn more about GSWA and the work that we do? View our photo gallery to see us in action.
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Current News

Christie Todd Whitman, former administrator of the U.S. Envi

Former NJ Governors Unite

A bi-partisan group of former New Jersey elected officials on Tuesday announced that, despite differences in politics, they were joining together to push environmental advocacy issues in Washington, D.C.
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Featured Post


The Economic Impact of Parks

In light of the current Presidential proposals and plans for defunding certain types of nationally owned land, it is good to consider how the Great Swamp region is lucky enough to benefit from…
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Spring 2017 Newsletter

Look back in your own family history and you’ll surely find the cultivation of vegetables, herbs, and flowers played a significant role in your ancestors’ lives.
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