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Great Bay National Estuarine Research Reserve - an official New Hampshire Government website
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Welcome!

The Great Bay National Estuarine Research Reserve (GBNERR) is part of a national network of protected areas and promotes long-term research, education and stewardship throughout the Great Bay estuary. Created under the Coastal Zone Management Act, the National Estuarine Research Reserve partnership program between the National Oceanic and Atmospheric Administration (NOAA) and the coastal states protects more than one million acres of the nation's most important coastal resources.

The New Hampshire Fish and Game Department manages the Great Bay Reserve, which was designated in 1989. The Reserve is also supported by the Great Bay Stewards, a non-profit friends group. Visitors are encouraged to explore the natural beauty of the Great Bay Estuary and discover New Hampshire's hidden coast.

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Seasonal Hours
We are open Wednesdays-Sundays, May-Sept, and weekends only in October. Our hours are 10am-4pm. The grounds are open year round, dawn to dusk. Our Special Collections pdf file exhibit is open the first Sunday of every month, 11am-1pm. Come learn about horseshoe crabs and walk our beautiful trails!
Kayak Program
Our summer kayak trips are open for sign-ups! Please visit our calendar of events page more more information.
Passport to Great Bay
Provides directions, information for navigating the landscape, exploration time, trail difficulty, as well as coordinates for the geocache program. The Passort to Great Bay materials are available only online, so print them before you go exploring!