Nantucket Sound Won’t Stay a National Treasure Without Your Support
The Alliance to Protect Nantucket Sound is a non-profit environmental organization dedicated to the permanent preservation of Nantucket Sound by designating it as a National Historic Landmark.
A National Treasure
Nantucket Sound is the body of water between Cape Cod and the islands of Martha’s Vineyard and Nantucket. The Sound includes 750 square miles of federal and state waters that possess significant marine habitat for a diversity of ecologically and economically important species.
With Your Help,
We’re Making Great Strides.
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What’s New
Thursday, September 17th
Ospreys on Cape Cod, the Islands, and Nantucket Sound
ACONS Webinar, 6-7pm ET
Drawing from his New York Times bestselling book Return of the Osprey (now celebrating its 25th year!) and decades of observing and writing about the natural world, David Gessner will share the fascinating story of the osprey’s decline, recovery, and enduring connection to Cape Cod, the Islands, & Nantucket Sound. David will explore what makes these birds of prey so compelling and what their return tells us about the health and resilience of our coastal ecosystems.
“Return of the Osprey can…claim a place among the classics of American nature writing.” — The Boston Globe
Thursday, November 12th
Winter Birds in and Around Nantucket Sound
ACONS Webinar, 6-7pm ET
If you are a birdwatcher, winter on Cape Cod is actually the best time of year!
Noted naturalist and educator John Hanlon will explore the remarkable winter bird species that migrate south each year to Cape Cod and Nantucket Sound. From colorful waterfowl and diving ducks to loons, grebes, and other coastal birds, the Cape becomes a seasonal refuge for wildlife that breeds far to the north.
2025 End-of-Year Newsletter
The generosity of our supporters has been the driving force behind our progress and success in protecting Nantucket Sound. Click below to review our 2025 end-of-year newsletter to see the progress we have made this past year.
MVY Radio’s segment on the Alliance to Protect Nantucket Sound
MVYRADIO Reporter Joe Stickles interviews Audra Parker from the Alliance to Protect Nantucket Sound