An Island Walk Minutes from Portland
Mackworth Island is a 100-acre island in Casco Bay connected to Falmouth by a short causeway. Governor Percival Baxter, the same person who donated Baxter State Park to the state, gave this island to the people of Maine in 1946 with the wish that it serve as a sanctuary for wildlife and a public space.
The 1.25-mile trail circles the island along the shoreline, staying mostly flat with occasional gentle rises over tree roots and rock. The entire loop takes about 45 minutes to an hour at a comfortable pace. Views of Casco Bay, Portland, and the offshore islands appear around every turn.
Two features make Mackworth Island especially memorable. The first is the fairy house village, tucked into the woods on the island’s interior, where visitors build miniature structures from sticks, bark, moss, and other natural materials. The second is the pet cemetery where Governor Baxter buried fourteen of his Irish setters and a horse, enclosed by a stone wall with bronze markers.
The Trail
The trail begins at the parking lot at the end of the causeway. Turn either direction to walk the perimeter. The path is a mix of packed earth, exposed roots, and occasional rocky stretches. It stays close to the shoreline the entire way, passing through spruce forest with frequent openings to the water.
The eastern side of the island looks toward Casco Bay and the calendar islands. The western side faces the Presumpscot River and Falmouth Foreside. At low tide, rocky beaches are exposed and you can walk down to the water’s edge.
The fairy house area is accessed via a short spur trail that leads inland from the perimeter path. A sign marks the turnoff. The fairy houses range from simple stick shelters to elaborate multi-story constructions. Kids love it. Adults do too.
The fairy house tradition at Mackworth Island uses only natural materials found on the ground: sticks, bark, moss, shells, pinecones, and leaves. No paint, glue, plastic, or brought-from-home materials. The best fairy houses use the natural contours of the ground and tree roots as their foundation.
Governor Baxter’s Legacy
Percival Baxter was Maine’s governor from 1921 to 1925, but his lasting legacy was the decades he spent buying and donating land. Baxter State Park, which he assembled parcel by parcel over 32 years, is his monument. Mackworth Island was his personal retreat, and he lived here with his dogs for much of his later life.
The pet cemetery on the island is a small, fenced area with headstones for fourteen Irish setters and one horse, all beloved companions. A bronze plaque records their names. It is a touching, personal space that reveals something about the man behind the park.
Mackworth Island is a local secret hiding in plain sight. Many Portland visitors never learn about it, even though it is only 15 minutes from downtown. Visit on a weekday morning and you might share the trail with only a few dog walkers. Weekends are busier, especially in summer.
When to Go
Spring
Wildflowers in the woods, migrating shorebirds along the coast. Trail can be muddy in spots through April.
Summer
Warm, green, and breezy. Fairy house village is at its most elaborate. Casco Bay sparkles.
Fall
Foliage on the island with the bay as backdrop. Cooler temperatures, fewer mosquitoes. Beautiful light.
Winter
Trail is walkable year-round. Snow on the spruce trees with Casco Bay views is a quiet, beautiful scene.
FAQ
Is Mackworth Island free?
Yes. The island is a state park with no entrance fee. Parking at the trailhead is free.
Can I bring my dog?
Yes. Dogs are welcome but must be on a leash at all times. The trail is popular with dog walkers.
Is the trail stroller-friendly?
Mostly. The path is relatively flat but has sections with tree roots and rocks that can be challenging for strollers with small wheels. A jogging stroller handles it better.
Can I swim at Mackworth Island?
Swimming is not officially designated, but at low tide some visitors wade on the rocky beaches. There is no lifeguard and no sandy beach. The water is cold.
What are the fairy houses?
The fairy house village is a beloved tradition where visitors build miniature structures in the woods using only natural materials found on the island. Hundreds of fairy houses are scattered through a wooded area accessible via a short spur trail from the perimeter path.
