For travelers exploring Portland, Maine with their pets, Casco Bay Lines offers a unique and scenic way to experience the city’s beautiful coastal surroundings – without leaving furry companions behind. Known for its iconic ferry routes connecting the mainland to the islands of Casco Bay, Casco Bay Lines is not only a practical transportation option but also a pet-friendly adventure waiting to happen. Whether planning a short cruise or a full-day island escape, pet owners will find Casco Bay Lines to be welcoming, accommodating, and full of photo-worthy views.
What Is Casco Bay Lines?
Casco Bay Lines is Portland’s primary ferry service, offering year-round transportation between the mainland and several nearby islands, including Peaks Island, Great Diamond, Long Island, and more. In addition to regular commuter services, the ferry also offers scenic cruises, mailboat runs, and sunset rides that showcase the beauty of Maine’s coastline.
The ferry operates out of the Casco Bay Ferry Terminal in downtown Portland, within walking distance of restaurants, shops, and pet-friendly accommodations.
Pet Policy: Welcoming Four-Legged Passengers
Casco Bay Lines is proudly pet-friendly. Passengers are allowed to bring their dogs and other pets on board under the following guidelines:
- Pets must be leashed and under control at all times.
- No additional fee is required for bringing a pet.
- Pets must remain on the exterior decks or other designated areas where permitted.
- Aggressive or disruptive animals may be refused boarding for safety reasons.
- Service animals are permitted throughout the vessel, as required by law.
This clear and flexible pet policy makes it easy for travelers to include their companions in their plans without added stress or cost.
Top Routes For Pet Travelers
Several ferry routes are ideal for travelers with pets:
- Peaks Island: Just a short 25-minute ride away, this island is perfect for walking, picnicking, and letting your dog explore. There is even a small beach where pets can splash around.
- Mailboat Run: This scenic, 2.5–3.5 hour cruise delivers mail and passengers to multiple islands. It is a laid-back way to enjoy the bay and relax with your pet on deck.
- Sunset Cruises: Check the schedule for seasonal evening rides – watch the sun dip behind the Maine coastline while your pup enjoys the cool twilight air.
Each route provides a different experience, but all include stunning views of the water, lighthouses, and coastal wildlife.
Tips For Traveling With Pets On Casco Bay Lines
To ensure a smooth and enjoyable experience, pet owners should keep the following in mind:
- Bring water and a bowl, especially during warmer months.
- Arrive early to secure a good outdoor seating area.
- Carry waste bags and dispose of pet waste properly.
- Avoid midday heat by choosing morning or evening sailings during the summer.
- Check the schedule in advance, particularly in the off-season or on holidays.
Being prepared helps ensure the ferry ride is safe and comfortable for both pets and their humans.
Why Choose Casco Bay Lines For Pet-friendly Travel?
Casco Bay Lines combines practicality with the charm of a coastal experience. It is one of the few public transport systems in the United States that openly accommodates pets on leisure and commuter routes alike. With no additional cost for animals and access to multiple destinations, the ferry service allows pet owners to fully enjoy the natural beauty of Portland and its islands. It is a perfect activity for couples, families, or solo travelers who do not want to leave their pets behind while exploring Maine.

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