Great Bay National Estuarine Research Reserve - an official New Hampshire Government website
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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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NOAA logoFish and Game logoGreat Bay Esturine Marine Reserve logo
Seasonal Hours

Exhibit Room Hours:

May-Sept: Wed-Sun, 10am-4pm

Oct: Sat & Sun only, 10am-4pm

Nov-April: closed for the season.

The grounds are open everyday, year-round, dawn to dusk. We do not shovel or de-ice the boardwalk or ourdoor stairs in winter. Come explore!

Upcoming Programs
Summer programs for kids, conferences for adults....check out our calendar of events page for details!
Public Boat Launch
The boat launch at the Discovery Center is a public launch and perfect for kayaks, canoes, and paddle boards! You can only safely access the water 2 hours either side of high tide so it is important to be very aware of the tides. Check Maine Harbors for the correct tide chart.