There’s a certain humility in approaching Maine’s coast by water, paddle in hand, with the salt air carrying the faint cry of gulls overhead. Jewell Island, a 221-acre speck in Casco Bay just off Portland, isn’t the postcard-perfect Acadia or the bustling harbors of Bar Harbor. It’s a place where the wild reclaims its space, inviting those willing to trade comfort for solitude. As a lifelong Mainer, I’ve found that paddling out here reminds us of our smallness against the sea’s vast rhythm—a thoughtful entry into the adventure that awaits.
The Allure of Jewell Island
Jewell Island, part of the town of Cumberland but feeling worlds away, is one of Maine’s hidden coastal treasures. Managed by the Maine Bureau of Parks and Lands, it’s accessible primarily by private boat or kayak, with no regular ferry service. This remoteness is its charm: no crowds, no amenities, just raw nature and echoes of the past. The island is named after George Jewell, who purchased it in the 19th century, but its history stretches back further, with evidence of Native American use by the Abenaki people for seasonal fishing camps.
Ecologically, Jewell is a microcosm of Maine’s coastal biodiversity. Dense spruce-fir forests cloak much of the interior, interspersed with meadows of wildflowers like goldenrod and asters in summer. The shoreline alternates between pebbled beaches and rugged cliffs, home to harbor seals basking on rocks and seabirds like common eiders nesting in the underbrush. “It’s like stepping into a living history book,” says local kayaking guide Tom Hale of Portland Paddle, who has led trips here for over a decade. “You feel the weight of time, from indigenous roots to wartime relics.”
A Brief Historical Insight
During World War II, Jewell Island transformed into a military outpost. Two 50-foot observation towers, built in 1944, still stand as sentinels, once used to spot enemy submarines in the bay. These concrete structures, now overgrown with vines, add an eerie, exploratory element to any visit. Climbing them (with caution, as they’re unmaintained) offers panoramic views of Casco Bay and the distant Portland skyline. The island also housed a small garrison, and remnants like old foundations and a punch bowl-shaped depression—said to be from a meteorite—dot the landscape, inviting hikers to ponder Maine’s role in broader histories.
Paddling to the Island: Planning Your Kayak Adventure
Reaching Jewell Island typically starts from Cousins Island in Yarmouth or Chebeague Island, with a paddle distance of about 3-5 miles depending on your launch point. The crossing involves navigating open water, where tides and winds can turn a calm trip into a challenge. Always check the weather; Casco Bay’s fog can roll in swiftly, reducing visibility to mere feet.
For beginners, joining a guided tour is wise. Outfits like Portland Paddle or Maine Island Kayak Company offer day trips or overnight excursions, providing sea kayaks, safety gear, and expert navigation. “The key is respecting the tide,” notes Hale. “High tide lets you land smoothly on the beach; low tide exposes rocks that’ll scrape your hull.” If going solo, ensure you have a VHF radio, personal flotation device, and a tide chart—essentials for safe paddling in these waters.
Essential Gear for the Paddle
- Sea Kayak: Opt for a stable model like those from Old Town, suited for open water.
- Navigation Tools: GPS device or compass, plus paper charts of Casco Bay.
- Safety Kit: Flare gun, whistle, and bilge pump to handle unexpected swells.
- Weather Protection: Dry bags for gear, and layers to combat the chill even in summer.
The paddle itself is meditative: the rhythmic dip of blades into water, the scent of brine mixing with pine as you approach. On a clear day, you might spot dolphins or the occasional whale breaching in the distance, a reminder of Maine’s thriving marine ecosystem.
Hiking and Exploring Jewell’s Trails
Once ashore, Jewell reveals about 3 miles of hiking trails maintained by the state. The perimeter path loops the island, offering varied terrain from soft forest floors carpeted in moss to rocky outcrops overlooking the ocean. The interior trails lead to the WWII towers, where the climb rewards with views that stretch to the White Mountains on horizon-clear days.
Wildlife abounds—keep an eye out for red foxes darting through the undergrowth or ospreys diving for fish. In fall, the foliage turns a brilliant mix of reds and golds, contrasting the ever-present blue of the sea. For a deeper dive, the island’s geology features unique formations like the “Punch Bowl,” a natural granite basin filled with rainwater, perfect for a reflective pause.
Spotlight on a Hidden Gem: The Submarine Towers
No visit is complete without ascending the towers. These relics, part of the Harbor Defenses of Portland, were manned by soldiers scanning for U-boats. Today, they’re a hiker’s delight, though the stairs are weathered—test each step. From the top, the wind carries the crash of waves below, and you can almost hear the ghosts of sentries past. As one visitor recounted in a park logbook: “Standing here, I felt connected to those who guarded these shores, a piece of Maine’s quiet resilience.”
Survival Tips for Remote Island Adventures
Jewell Island embodies the “remote islands” aspect of Maine’s wild side, with primitive camping allowed at designated sites—no fires, no facilities, just you and the elements. Survival here means preparation, as help is a paddle away.
First, pack for self-sufficiency: a tent sturdy against coastal winds, water filtration system (fresh water is scarce), and high-energy foods like nuts and dried fruits. Insects can be fierce in summer, so bring bug repellent with DEET. Weather shifts quickly; a sunny morning can yield afternoon squalls, so monitor forecasts via apps like Windy or NOAA.
Practical Survival Advice
- Leave No Trace: Pack out all waste to preserve the island’s pristine state.
- Navigation in Fog: Use a compass if visibility drops; stick to marked trails to avoid disorientation.
- Emergency Preparedness: Carry a first-aid kit and know basic signals—three whistle blasts for help.
- Wildlife Etiquette: Give seals space; they’re protected under the Marine Mammal Protection Act.
Local expert Sarah Jenkins, a survival instructor with Maine Primitive Skills School, emphasizes mindset: “In places like Jewell, survival is about adaptation. Learn to read the tides, forage for edible kelp if needed, and embrace the isolation—it builds character.” Her workshops, often held in similar coastal spots, teach skills like building shelters from driftwood, crucial for unexpected overnights.
Why Jewell Island Matters to Maine’s Outdoor Community
In an era of overtourism, Jewell stands as a testament to Maine’s commitment to preserving wild spaces. It’s part of the Maine Island Trail Association’s network, promoting responsible access to over 200 islands. Visiting here fosters a sense of stewardship, reminding us that these places thrive when we tread lightly. As Hale puts it, “Jewell isn’t just an adventure; it’s a conversation with the land and sea that shaped us Mainers.”
Whether you’re a seasoned paddler or a curious newcomer, Jewell Island offers a grounded adventure that honors Maine’s coastal heritage. Plan your trip, respect the wild, and let the tides guide you home.










