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
The Discovery Center is open May-Sept, Wed-Sun, 10am-4pm. October we are open weekends only, and the building is closed Nov-April. The grounds are open year round, dawn to dusk.
Great Bay 5K
The 16th annual Great Bay 5K is Saturday October 25th. Learn more and register for this fun, scenic, race at the Great Bay Stewards website.
Get On Board!
Help Us Rebuild the Boardwalk:
After 22 years of service, this local treasure is at the end of its life. We need your help to reach our fund raising goal and replace the boardwalk by 2016. To learn more visit our boardwalk page.
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!
ENH Power Community Partnership
Save money and help the Discovery Center? Sign up with ENH Power and our friends group The Great Bay Stewards recieves a donation. For more info visit the ENH site.