Appalachian Mountain Club
For events and activities at America’s oldest nonprofit conservation and recreation organization.

Blackstone River Watershed Council
For a list of upcoming events taking place along the Blackstone River Valley National Heritage Corridor that extends from Worcester to Providence.

Bronx River Alliance
For news and a calendar of events at this organization which seeks to protect, improve and restore the Bronx River corridor.

Brooklyn Center for the Urban Environment
For events and tours sponsored by this organization which is dedicated to educating people of all ages about the built and natural environments of New York City.

Citizens for New York City
For a list of events and workshops sponsored by this organization dedicated to improving the quality of life in New York City neighborhoods.

Clearwater
For information on this environmental education, advocacy programs and celebrations sponsored by this organization which is dedicated to the restoration and preservation of the Hudson River.

East Coast Greenway
For events and meetings sponsored by this organization which seeks to create an off-road route for walkers and cyclists running from Maine to Florida.

Environmental Advocates of New York
For a list of regional environmental events, primarily in New York State but also in New England and the Mid-Atlantic area.

Friends of Acadia
To find out about events and projects sponsored by this Acadia National Park advocacy group

Friends of Cape Cod National Seashore
For a list of events and a link to the NPS Cape Cod site

Bayside Historical Society
For information on events sponsored by this organization which collects, preserves and disseminates information concerning Bayside and adjacent communities in Queens

Boston Harbor Islands
To find activities and events at this group of 34 islands and peninsulas

Brooklyn Bridge Park Conservancy
For information on events sponsored by this organization which is working to expand and improve the Brooklyn Bridge Park.

Brooklyn Children’s Museum
For information on activities at this first museum created expressly for children.

City Parks Foundation
For information on all types of events held in parks throughout New York City.

Clearwater
For information on this environmental education, advocacy programs and celebrations sponsored by this organization which is dedicated to the restoration and preservation of the Hudson River.

Edison National Historic Site
For information on visiting the mansion, grounds and laboratory of Thomas Edison in West Orange

Friends of Cape Cod National Seashore
For a list of events and a link to the NPS Cape Cod site

Gateway National Recreation Area
For information on events at this National Recreation Area which is situated in three boroughs of New York City as well as Sandy Hook in New Jersey.

Governor’s Island Alliance
For information on events and walking tours

Alley Pond Environmental Center
For information on monthly events and programs for adults and children of all ages at this urban environmental center in Queens.

American Museum of Natural History
Click on On Exhibit and Public Programs links to learn about what’s in store at the museum and at the Rose Center for Earth and Space.

Boston Harbor Islands
To find activities and events at this group of 34 islands and peninsulas

Bronx River Alliance
For news and a calendar of events at this organization which seeks to protect, improve and restore the Bronx River corridor.

Brooklyn Bridge Park Conservancy
For information on events sponsored by this organization which is working to expand and improve the Brooklyn Bridge Park.

Central Park Conservancy
For information on activities, events and walking tours in Central Park.

City Parks Foundation
For information on all types of events held in parks throughout New York City.

Clinton Community Garden
For information on this community garden in Hells Kitchen, New York City

Environmental Advocates of New York
For a list of regional environmental events, primarily in New York State but also in New England and the Mid-Atlantic area.

Friends of Boston Harbor Islands
For information on events and boat trips sponsored by this environmental and educational organization

American Museum of Natural History
Click on On Exhibit and Public Programs links to learn about what’s in store at the museum and at the Rose Center for Earth and Space.

Blackstone River Watershed Council
For a list of upcoming events taking place along the Blackstone River Valley National Heritage Corridor that extends from Worcester to Providence.

Boston National Historic Park
Click on the links to learn about events and nearby attractions, including other national parks and sites

Edison National Historic Site
For information on visiting the mansion, grounds and laboratory of Thomas Edison in West Orange

Fire Island Lighthouse Preservation Society
For the Schedule of Events taking place at this historic lighthouse and a link to the NPS Fire Island National Seashore site

Friends of Sagamore Hill
Learn about this organization dedicated to the preservation of Theodore Roosevelt’s Long Island Home, and access links to the NPS Theodore Roosevelt Birthplace and Sagamore Hill sites

Governors Island Preservation and Education Corporation
For information on activities during the summer

Historic Districts Council
For a list of programs and events organized by this group which advocates for New York City’s designated historic districts and neighborhoods.

Hudson River Valley National Heritage Area
For information about approximately 90 Hudson River Valley Heritage Sites and available activities and events

Maine Acadian Culture
For links to chambers of commerce and sites in the St. John Valley.

American Littoral Society
Organization concerned with coastal issues as well as beach cleanups and field trips.

Appalachian Trail Conservancy
For general and state-by-state information on hiking the Appalachian National Scenic Trail

Berkshire Hiking
Learn about and link to the NPS website for Weir Farm National Historic Site, and get information about hiking in the area

Boston Harbor Islands
To find activities and events at this group of 34 islands and peninsulas

Central Park Conservancy
For information on activities, events and walking tours in Central Park.

East Coast Greenway
For events and meetings sponsored by this organization which seeks to create an off-road route for walkers and cyclists running from Maine to Florida.

Erie Canalway National Heritage Corridor
Click on the link to the calendar of events along this historic corridor

Friends of Acadia
To find out about events and projects sponsored by this Acadia National Park advocacy group

Gateway National Recreation Area
For information on events at this National Recreation Area which is situated in three boroughs of New York City as well as Sandy Hook in New Jersey.

Gowanus Dredgers Canoe Club
For information on free canoeing, walking and bicycle tours held on the shorelines of Gorwanus, Red Hook and DUMBO.

Blackstone River Watershed Council
For a list of upcoming events taking place along the Blackstone River Valley National Heritage Corridor that extends from Worcester to Providence.

Brooklyn Bridge Park Conservancy
For information on events sponsored by this organization which is working to expand and improve the Brooklyn Bridge Park.

Clean Ocean Action
For information about education and beach sweeps programs related to the waters from Cape May to Montauk Point.

Fire Island Lighthouse Preservation Society
For the Schedule of Events taking place at this historic lighthouse and a link to the NPS Fire Island National Seashore site

Friends of Cape Cod National Seashore
For a list of events and a link to the NPS Cape Cod site

Green Guerillas
For a list of programs and events sponsored by this organization which works to help New York City residents create and sustain community gardens.

Institute for Ecosystem Studies
to find out about hiking trails, exhibits and public programs offered by one of the largest ecological programs in the world.

New York Restoration Project
For a guide to community events presented by this organization dedicated to the development of under-resourced gardens and spaces in primarily economically disadvantaged neighborhoods in New York City.

North Country Trail Association
For information about this National Scenic Trail which stretches 4,600 miles from New York to North Dakota, and a link to a calendar of trail-wide events

Randall’s Island Sports Foundation
For information on events on Randall’s island as well as track and field meets in Icahn Stadium.