Great Bay National Estuarine Research Reserve

Great Bay National Estuarine Research Reserve Lands are open dawn to dusk every day, Discovery Center building is closed for the season, watch social media for updates.

Great Bay National Estuarine Research Reserve (GBNERR) is an estuary comprised of 7,300 acres of tidal waters and 2,935 acres of coastal land. GBNERR was designated on October 3, 1989 to focus on four priority topics, including land conservation, water quality, habitat and biological communities, and climate change impacts and adaptation. The combination of stewardship, research, and education add

ress these primary topics. Stewardship priorities at Great Bay focus on upland and intertidal resource management. Properties are managed to sustain wildlife and fish populations in balance with human uses. GBNERR implements monitoring programs to evaluate and track water quality, habitat conditions, and species populations in Great Bay and its watershed. The research projects of GBNERR address the four priority topics noted above. The Coastal Training Program provides science based training resources to individuals who are responsible for making decisions that affect coastal resources. The purpose is to ensure that coastal decision makers have the tools they need to address critical resource management issues. The vision of the CTP is ecosystem-based management of coastal resources based on sound scientific knowledge and the understanding of long-term environmental, social, and economic consequences of management decisions and actions. The Great Bay Discovery Center opened in 1996 as the education headquarters of GBNERR. Education programs at the Discovery Center convey scientific information to school groups, interested adults, public decision-makers, and others. Adjacent to the Discovery Center is the Hugh Gregg Coastal Conservation Center which showcases exhibits on upland habitats and also serves as a training facility for a variety of workshops.

06/13/2026

From June 21 through June 27, the NH Audubon Nature Challenge will be bringing people together all over New Hampshire to celebrate and document our local wildlife using eBird and iNaturalist. We welcome explorers of all ages and skill levels to visit any of our 20+ included sanctuary properties and help us inventory the birds, mammals, insects, reptiles, amphibians, flowers, trees, mosses, mushrooms, and more there.

Want to prepare? Review the webinar on our website or YouTube if you want to learn more about eBird and iNaturalist. You can join us for a guided tour with naturalists during the challenge too! Space is limited so RSVP now on our Events Calendar.

https://nhaudubon.org/center-and-events/nh-audubon-nature-challenge/

Gordon will be down at the waterfront today, Saturday June 13th 11:15am-1:15pm, to teach you all about spawning Horsesho...
06/13/2026

Gordon will be down at the waterfront today, Saturday June 13th 11:15am-1:15pm, to teach you all about spawning Horseshoe Crabs! These waterfront naturalist shifts are sporadic, and we are nearing the end of the spawning season, so don't miss out 🙂 The Discovery Center is open 10am-4pm, and we will have Critter Dinner around our Discovery Tank 10:30am. The outside areas are open every day, dawn to dusk.

Gordon will be down at the waterfront tomorrow, Saturday June 13th 11:15am-1:15pm,  to teach you all about spawning Hors...
06/12/2026

Gordon will be down at the waterfront tomorrow, Saturday June 13th 11:15am-1:15pm, to teach you all about spawning Horseshoe Crabs! This waterfront naturalist shifts are sporadic, and we are nearing the end of the spawning season, so don't miss out!

06/12/2026
06/12/2026

Did you know horseshoe crabs have been roaming our planet for over 450 million years?

These incredible creatures are a vital part of coastal ecosystems, including estuaries like Great Bay. From supporting migratory shorebirds to contributing to life-saving medical research, horseshoe crabs play a much bigger role than many people realize!


06/12/2026
06/11/2026

Did you know that Great Bay is an estuary?

An estuary is where freshwater from rivers mixes with saltwater from the ocean, creating one of the most productive ecosystems on Earth.

Marsh grasses and wetlands naturally filter pollutants and excess nutrients before they reach the ocean.

Estuarine habitats help absorb storm surge and reduce erosion, making the coastal community you call home more resilient!

Great Bay’s health directly impacts wildlife, recreation, and the natural beauty that makes our region so special!

HUGE shoutout to Vintage Fish Company for donating mackerel to our tank critters....we love our community and appreciate...
06/11/2026

HUGE shoutout to Vintage Fish Company for donating mackerel to our tank critters....we love our community and appreciate the support so much!

Address

89 Depot Road
Greenland, NH
03840

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