Casco Bay Lines offers many opportunities to get out on the Bay with a variety of scenic Portland Maine cruises offering different destinations, durations, and departure times. Pack a lunch; bring your camera, binoculars, and a sweater.

You are welcome to bring your own food and drink on all cruises.

Choose from a family trip with the kids to explore tidal pools or wade at one of the small beach areas. Escape for a romantic lunch or dinner, a day at the beach, or bring your bike and explore island life on Peaks Island, Bailey Island, and Casco Bay islands. There truly is something for everyone!

Choose an adventure to fit your schedule!

Trip times vary based upon route and cargo volume.

Peaks Island

Duration: 17 minutes (one-way)

Take this 17 minute crossing to Peaks Island where you can hike, rent a bike, spend a day at the beach, explore the tidal pools or enjoy lunch or dinner at one of the island restaurants. Year round availability.

Mailboat Run

Duration: 2.5-3.5 hours (roundtrip)

An integral part of our island communities, the Mailboat is a true working boat carrying passengers, mail and freight to the islands of Casco Bay—Little Diamond, Great Diamond, Long, Cliff and Chebeague. As the longest-operating service of its kind, this tour is a wonderful way to see the sights of the Bay. Year round availability.
Narration provided with 10 or more cruise passengers.

Diamond Pass Run

Duration: 1.75-2 hours (roundtrip)

Take this scenic cruise of the Inner Bay past lovely Victorian cottages on the shorelines of Little and Great Diamond Island and Long Island. Catch a glimpse of island life as we travel to four different stops. Seasonal availability.
Narration provided with 10 or more cruise passengers.

Sunset Run

Duration: 2.5-2.75 hours (roundtrip)

Portland shimmers in the distance as you relax in the twilight of a perfect Maine day. Enjoy evening breezes as we navigate our way through Casco Bay. Year round availability.
Narration provided with 10 or more cruise passengers.

Sunrise on the Bay

Duration: 2-2.5 hours (roundtrip)

Join our crew on a peaceful dawn departure through the awakening islands. Observe sea birds, seals, and an occasional deer along the shoreline. Watch the lobstermen and the local fishing fleet as they get underway from their docks and moorings. Year round availability.
Narration provided with 10 or more cruise passengers.

Moonlight Cruise

Duration: 1.75 hours (roundtrip)

Harbor lights twinkle brightly as the ferry makes its way through the moonlit waters of the night bay. Seasonal availability.

Bailey Island

Duration: 5.75 hours (roundtrip)

Listen as the captain describes the history of Casco Bay as we cruise past lighthouses, forts and 19th-century summer colonies. Enjoy a leisurely stop over and dine on Down East cuisine, or bring a picnic and stroll the nearby beaches. This popular narrated round trip offers perfect Maine memories. Seasonal availability.