A nature trail winds its mellow way through a red maple swamp between Deer Isle-Stonington’s middle and high schools.
Less than a half mile long, the raised boardwalk path curves around stands of maples and crowds of cinnamon ferns. Colorful letters, in alphabetical order, mark the trail’s sections.
“The first grade has a six-week phenology unit every spring, where they come out with their clipboards and their handheld microscopes and binoculars and their nature journals,” said Mickie Flores, a former math and science teacher at Deer Isle-Stonington Elementary School. Now retired, Flores remains a dedicated advocate for the schools’ outdoor learning spaces.
Students crouch in their designated sections—indicated by those alphabetical letters—and look: what’s going on? What do they see now that they didn’t see last week? In their journals they track changes, those hints of green peeking through the soil, stems reaching upward, leaves unfurling, buds opening.
The meandering nature trail continues on to wide sections—open decks with railings and benches or stools made from tree stumps.
Teachers bring students to these outdoor classrooms to learn under the tree canopy. And that goes for teachers of all subjects.
“These are places to teach,” said Flores. “They’re for English or art or math or social studies. The drama teacher brings people out to practice their lines.”
The school counselor brings students out, too.
The trail also loops around a yellow birch, which has become a popular spot.
“The yellow birch spur became an outdoor classroom,” said environmental educator Martha Bell, who works alongside teachers at Deer Isle-Stonington. “Students sit on the edge, because it’s kind of a circle. And the teachers just gravitate to that place.”

Deer Isle-Stonington students write in their notebooks during class outside on the nature trail. (Courtesy photo)
Deer Isle-Stonington’s nature trail and outdoor classrooms are nine years in the making, said Flores. The project is a collaborative community effort. The school has a tight partnership with Island Heritage Institute. Volunteers have helped design and build trail. Artists from nearby Haystack Mountain School of Crafts work with students to create art that decorates the trail, including the trail sign.
Over the last five years, funding from Friends of Acadia’s Outdoor Classroom grants helped build two of the outdoor classrooms as well as an in-the-works switchback where the trail ends near the middle school. Currently there’s a set of stairs to enter or exit the trail; the switchback will improve accessibility.
Last year’s grant was one of 12 Outdoor Classroom grants awarded by Friends of Acadia to Maine schools. These grants support the creation of outdoor learning spaces and activities on school campuses so that students benefit from time spent in nature and curriculum that builds connections to Acadia National Park. The grants enable teachers to create outdoor opportunities that best suit their students, be that building a trail, tapping maple trees, or solving math equations to the flittering sounds of chickadees.
“Being outside opens the gateway to curiosity,” said Bell. “If you tell students to look for birds and write them down, that’s not nearly as effective as them making their own discoveries.” Outdoors, they have space to explore.
“They come out with hand lenses, and they get right up on the bark of a tree. They love scientific tools. They’re out here being scientists,” Bell added. The things they find, she said, feel like revelations. “They’re wondering and thinking that they maybe just found a new species.”
And research supports the positive impact of outdoor learning. A 2017 Stanford University review of 119 peer-reviewed studies found that environmental education for K-12 students improved academic performance and critical thinking skills and helped students develop confidence, autonomy, and leadership. It improved their motivation to learn and their interest in school.
“Our Outdoor Classroom grants are helping to support the culture of Maine’s public schools to become more nature-based,” said Paige Steele, Friends of Acadia’s Acadia for All director, who oversees the grant program. “Most folks don’t realize what a wonderful and massive change this is, because for 50-plus years it was mostly students from private or wealthy public-school districts who had access to outdoor learning. Most schools surrounding Acadia are in small, rural towns with modest school budgets.”
Through outdoor classrooms, students connect with the outdoors in ways they might not otherwise have an opportunity to do, building their appreciation for and stewardship of outdoor spaces.

Deer Isle-Stonington students look out at the Isle au Haut Lighthouse during a trip to the island. (Courtesy photo)
For Deer Isle-Stonington, the Outdoor Classroom grants, combined with a Yellow Bus Fund grant from Friends of Acadia to assist with transportation costs, is also connecting students to Isle au Haut, a remote portion of Acadia National Park about six miles off the coast of Stonington.
Every year now, students take the 45-minute ferry ride to the island for a ranger-led program. Many of those students have never to been to Isle au Haut (so close and yet so far from their own
backyards).
The culture at Deer Isle-Stonington has shifted to one that embraces the outdoors in all seasons. Many classrooms are out on the nature trail every week, feeding the birds, conducting experiments, scouting for wildlife. And students continue to benefit.
“Some of the kids who have a hard time inside a classroom thrive outside,” said Bell. “They can decompress. Fifteen or twenty minutes outside and they’re so different when they get back to the classroom.”
This outdoor space is a place for students to learn, but they’re integral to its existence, too.
They moved soil and removed invasive plants. High school students designed and built a railing. They planted a witch hazel shrub that was donated by a neighboring land trust. Kindergarteners fill the bird feeders.
“All of these kids made it,” said Flores. “This place belongs to them.”