About This Tour
Board the Elizabeth Grace for this exclusive one-of-a-kind experience. Whether you are a local or visiting from away, the stone fortresses built in the early 19th century in Portland Harbor are always captivating. They are imposing reminders of days not too far gone when the defense of our coastline required their presence. Despite their prominence, the forts are not easy to access for a variety of reasons, and most locals and visitors have never been to Fort Scammel, the only fort in the Harbor to see active combat. Fortunately, the owners of Fort Scammel have partnered with us to offer private tours of this incredible historic site. This is an experience NOT TO BE MISSED! Along the way, we’ll cruise past some of the other great sights in the bay, including the iconic lighthouses. GROUP OF 6 OR MORE? Please reach out to us about private charter options for the best experience possible! Our Fort Tour on a Private Island has a 4 PERSON MINIMUM to operate.
Photo Gallery

Inside the west bastion. This is a tour unlike no other in Portland!

Portland Head Light. Seen best through a artillery window inside of Fort Scammel!

Walking up to the fort, you can't wait to get inside!

Your private island experience, Fort Scammel!

Kid's can enjoy a scavenger hunt and lanterns on their exploration of the private island!

Your vessel, ELIZABETH GRACE, awaits!
TopTours Insights
Private Island Fort Tour in Casco Bay: Boat Cruise & Island Tour
This 2-hour private boat tour with SeaPortland takes you to a secluded island fort in Casco Bay. It’s ideal for couples or small groups seeking a quiet, scenic outing away from larger crowds, with a local craft beverage included.
Calculating tour characteristics...
What's Included
What's Not Included
Additional Information
Meeting Point
BOAT DEPARTS DOCK RIGHT AT TOUR TIME! Arrive 15 MINUTES before the start time of your tour. Meet inside of the retail store, Portland Beer Hub (320 Fore Street, Portland, ME 04101), in downtown Portland's Old Port. Portland Beer Hub staff will lead you to the dock and to your vessel!
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
✓ Free cancellation due to bad weather
Tour Operator
SeaPortland
Official supplier for this experience. Bookings are handled directly through Viator with verified partners.
Viator Certified
Trusted local operator
Guest Ratings
Total review count and overall rating based on Viator and Tripadvisor reviews
Based on 64 verified reviews
Average rating
Guest Reviews Preview
See what other travelers are saying about this experience.
Frequently Asked Questions
Common questions about Private Island Fort Tour in Casco Bay: Boat Cruise & Island Tour
Who operates this experience?
This experience is operated by SeaPortland, a local water sports provider.
What's included?
This tour includes Option to purchase additional drinks aboard (credit card only), One canned local, craft, alcoholic beverage or NA drink included per person, and Restroom Available At Departure Location / NOT Onboard the Boat. All inclusions are provided by the tour operator.
How long is this tour?
The experience lasts approximately 2 hours, giving you time to fully enjoy your chosen activity.
Can I cancel this tour?
Yes, you can cancel up to 24 hours before the scheduled departure time for a full refund. If weather conditions are unsafe, the tour may be canceled by the operator. In such cases, you'll be offered a refund or reschedule.
What should I bring?
We recommend bringing a swimsuit, towel, and sunscreen. All necessary equipment is provided by the tour operator.
Will I receive instant confirmation?
Yes, you'll receive instant confirmation when you book.
Is this tour worth it?
Yes, this experience has a 4.8-star rating based on 64+ reviews, making it a highly rated option.
What to expect on this tour?
This water sports experience lasts approximately 2 hours and includes all necessary equipment and guidance. You'll have access to Option to purchase additional drinks aboard (credit card only) and more.
What's the best time to do this tour?
Morning and early afternoon are typically the best times for water activities, as conditions are usually calmer and visibility is better.
Do I need to know how to swim?
Swimming ability requirements vary. Life jackets and safety equipment are provided. Please check the tour details or contact the operator if you have concerns about swimming requirements.
Ready to Go?
Book Private Island Fort Tour in Casco Bay: Boat Cruise & Island Tour
Secure your spot instantly through Viator and receive flexible cancellation options plus verified customer support.
Trusted partner • Instant confirmation
