Ride the Scenic Casco Bay Lines Ferry from Portland, Maine
A Glimpse into Coastal Towns and Maine Island Life
Golden light cuts through salt-streaked windows, washing over the long wooden benches inside the ferry cabin. A low hum of conversation rises from a cluster of high schoolers in the aft berth, their voices nearly lost beneath the steady thrum of diesel engines. Most passengers have escaped to the foredeck, chasing the last warmth of the sun against the bite of an autumn Atlantic breeze.
The steel-hulled ferry moves with surprising speed across Casco Bay, barely flinching at the chop. As it noses into the pier at Long Island, the crew snaps into motion. A loop of heavy yellow line lands over a steel bollard, the gangway drops, and an island routine unfolds with timeless efficiency. The students step off toward a waiting golf cart while a paint crew—white flecks speckling their red shirts—climbs aboard. A cart rattles across the gangway, loaded with old Chiquita banana boxes stuffed with stacks of mail, Amazon packages and Hannaford grocery orders. Then the crane groans to life. Two weathered porta-potties rise into the air, swinging over wide-eyed passengers before thudding onto the top deck and getting strapped down for the voyage.
Engines up again. Lines off. The ferry pivots back into the bay, bound for Cliff Island.
The Mailboat Run: A Scenic Cruise
Even with waves slapping the piers along Commercial Street, the energy of Portland’s restaurants and shops can feel far removed from the quiet waters of Casco Bay. A short ride among the islands is all it takes to see a different side of Maine’s biggest city.
The Casco Bay Lines Mailboat Run offers one of the best views of the bay. This working ferry delivers passengers, mail and freight to the outlying islands—and invites sightseers along for the ride. When there are at least 10 cruise passengers aboard (common in warmer months), the captain narrates the journey with stories of local history, culture and ecology.
What to See on the Casco Bay Lines Ferry
The route, which varies seasonally, usually includes Little Diamond, Great Diamond, Long, Cliff and Chebeague islands.
From the starboard windows, three lighthouses come into view: Portland Breakwater Light (Bug Light), Spring Point Ledge Light and the iconic Portland Head Light.
Historic forts from Portland’s harbor defenses, such as Fort Preble, Fort Scammell, Fort Gorges and Fort McKinley, also appear along the way—some easily spotted, others tucked behind rocky headlands and spruce.
Birding and wildlife watching leads to its own rewards. Harbor seals haul out on ledges, bald eagles and ospreys patrol the sky and seabirds skim the swells. Porpoises, gray seals and even the occasional whale make brief appearances.
Know Before You Go
Pack a Picnic
The Mailboat encourages passengers to bring snacks and drinks aboard, making it easy to turn the ride into a floating picnic. The late-afternoon departure is ideal for a casual happy hour—think cheese, crackers and a local craft beer as the sun dips over the water. You can pack your own snacks, but several excellent provisions shops near the Maine State Pier make it easy to stock up before you board:
Standard Baking Co.
Fresh bread and pastries draw daily lines to this Portland staple. Grab a morning croissant and coffee for an early cruise or a baguette to pair with cheese later in the day.
Portland Beer Hub
A go-to for local flavor, this shop offers a wide range of Maine craft beers and ciders, plus canned wines, cocktails and mocktails—sold individually or in packs.
Browne Trading Market
A favorite for seafood lovers and gourmands, this market carries smoked fish, artisanal cheeses and fine wine. A tin of trout, aged cheddar and a bottle of Burgundy turns the Mailboat into date night.
Flatbread Company
Some outings call for pizza. This waterfront favorite is just steps from the ferry and perfect for picking up a pie to share on deck.
Respect the Working Ship
The Mailboat Run offers a memorable way to experience Casco Bay, but it’s also a vital lifeline for island communities. This is a working vessel, delivering mail, freight and everyday essentials. Please give the crew space to load and unload safely, and be mindful that many fellow passengers are simply heading home, commuting or running errands. Enjoy the journey, take in the views and be a respectful part of this daily rhythm of island life.
Learn more about being a good visitor with the Look Out for ME principles.
How to Take the Ferry: Tickets and More
The Mailboat Run takes about 2.5 to 3.5 hours, depending on freight stops, and runs three times daily year-round. Schedules shift with the seasons, so check departure times before planning your trip. Leashed dogs are allowed and must have a ticket (unless they are in a pet carrier or are a service animal). All tickets must be purchased at the Casco Bay Lines terminal on the Maine State Pier.
This adventure was written and photographed by Cameron Held of Maine The Way.