Discover the Coast One Species at a Time During BioBlitz!

Posted on August 27, 2026

Come explore with Seacoast Science Center during our 24th Annual BioBlitz in Odiorne Point State Park!

By Michelle Dillon, Senior Manager of Marketing and Communications

This year will mark the 24th BioBlitz hosted by Seacoast Science Center. This is a day in September when families, students, and scientists explore the 135-acre coastal landscape and habitats of Odiorne Point State Park to document its incredible biodiversity.
This year will mark the 24th BioBlitz hosted by Seacoast Science Center. This is a day in September when families, students, and scientists explore the 135-acre coastal landscape and habitats of Odiorne Point State Park to document its incredible biodiversity.

You don’t need a science degree—or even to know the difference between a blue mussel and a clam—to enjoy Seacoast Science Center’s annual BioBlitz. In fact, that’s exactly what makes this day-long community science/exploration event so memorable.

As someone who loves being outdoors but wouldn’t consider myself a scientist, I find BioBlitz to be one of the most engaging ways to experience New Hampshire’s coastline. The premise is simple: find and identify as many species as possible throughout the park during a single day. But what unfolds is much more than a nature scavenger hunt. Rather than simply walking the trails of Odiorne Point State Park, participants become part of a real scientific adventure, exploring alongside Seacoast Science Center naturalists and an impressive team of guest scientists, researchers, and divers.

Odiorne Point State Park is home to a variety of habitats packed into just 130 acres. Rocky shorelines, tide pools, salt marshes, woodlands, meadows, and freshwater wetlands each support unique plants and animals, many of which are easy to overlook or under appreciate without someone pointing them out. Throughout the day, experts help participants uncover the remarkable biodiversity that exists just beneath their feet—or under a carefully lifted rock.

One moment you may be peering into a tide pool to spot tiny crabs, colorful seaweeds, sea stars, and urchins. Next, you’re identifying shorebirds along the coast, learning about insects in the meadow, or discovering how native plants support an entire ecosystem. Divers return from the waters offshore with fascinating marine creatures and stories from beneath the surface, offering a rare glimpse into the Gulf of Maine that most visitors never have the opportunity to see.

What makes BioBlitz especially enjoyable is that curiosity is all that’s required. Questions are encouraged, and every discovery—whether it’s a common snail or a rarely spotted species—becomes an opportunity to learn. Children and adults alike quickly realize that scientific exploration isn’t confined to laboratories; it happens wherever people are willing to slow down, observe, and ask questions.

Together, on this day, our community has identified more than 2,400 species and sparked countless moments of discovery. Here guests and experts collect species with a seine net–a long, narrow net used to gather sea critters in shallow water–off Frost Point in the park, and examine the different crabs, fish, seaweeds and more that live just beneath the waves. Photo credit Kate Wilcox.
Together, on this day, our community has identified more than 2,400 species and sparked countless moments of discovery. Here guests and experts collect species with a seine net–a long, narrow net used to gather sea critters in shallow water–off Frost Point in the park, and examine the different crabs, fish, seaweeds and more that live just beneath the waves. Photo credit Kate Wilcox.

Beyond the excitement of finding wildlife and exploring nature, participants also gain a deeper appreciation for why these coastal habitats matter. Learning how species are connected and how scientists monitor biodiversity helps bring conservation and climate resilience into focus in ways that are approachable and inspiring.

By the end of the day, you’ll likely leave with muddy shoes, a camera full of photos to share on iNaturalist, and a newfound appreciation for the incredible diversity that exists within New Hampshire’s coastal ecosystems. More importantly, you’ll discover that science isn’t just something done by experts—it’s something anyone can experience through observation, exploration, and a little curiosity.

This year’s BioBlitz takes place on Sunday, September 20, from 7 a.m. to 4 p.m., at Seacoast Science Center in Odiorne Point State Park. Participants are welcome to join for the entire day or explore for just a few hours as they follow their interests through guided investigations of the park’s diverse coastal habitats. Whether you’re an avid naturalist or someone simply looking for a unique family adventure, BioBlitz offers an unforgettable opportunity to see the Seacoast through fresh eyes and leave with a deeper connection to the coast we all share. Learn more and register at seacoastsciencecenter.org/bioblitz.

In this inspiring pair of photographs from last year’s BioBlitz, a young visitor engages with a naturalist in the park’s tide pools, learning about the species that thrive in the intertidal zone.
In this inspiring pair of photographs from last year’s BioBlitz, a young visitor engages with a naturalist in the park’s tide pools, finding and learning about the species that thrive in the intertidal zone, like crabs, snails, urchins, lobsters and more.
Then, this young participant shares her newfound knowledge with another guest. It’s moments like this that capture the essence of this day and the center’s mission–turning curiosity into understanding, and understanding into action for our Blue Planet here on our coast in Rye, NH!
Then, this young participant shares her newfound knowledge with another guest. It’s moments like this that capture the essence of this day and the center’s mission–turning curiosity into understanding, and understanding into action for our Blue Planet!

24th Annual BioBlitz!

Sunday, September 20, 2026 • 7 AM-4PM

Join us at Odiorne Point State Park to discover the incredible diversity of species found along our Seacoast. All ages and experience levels are welcome!

CLOSING EARLY: THURSDAY, May 22, 2025. Due to anticipated high winds, we will be closing at 3pm today, to prioritize the safety of visitors, volunteers & staff. Stay safe.

Update: Tuesday, July 7, 2026

Planning to visit today?

It’s a good idea to reserve online, especially with rain forecasted, as rainy summer days often find us at capacity, particularly in the morning, with walk-ins depending on availability. Book tickets here. 

Seacoast Science Center
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognizing you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.