"The island was home to post Civil War Fort McKinley."
ps92 from United States
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"Our room was so comfortable, and walking around the island there were so many cute spots to explore."
Becca O from United States
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"The hotel amenities were very fun - pool, fire pit, basketball court, game room."
Rachel F from United States
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"The island is very walkable with lots of beautiful and interesting sights."
Melissa M from United States
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Car-free island hotel in Portland's Casco Bay, a converted 19th-century military fort
Amenities & Activities
The Inn at Diamond Cove offers a heated outdoor swimming pool and a poolside cabana bar with drink service. Guests use complimentary bicycle rentals to explore the island, which has no cars-only golf carts and bicycles for transport. The hotel provides access to tennis courts, a bowling alley, and a billiards table within the property.
Rooms & Accommodations
The hotel offers 44 deluxe guest rooms and suites with balconies, housed in converted Fort McKinley barracks. Rooms come with minifridges and microwaves for guest convenience, and some units include kitchenettes. Pet-friendly rooms are available, supporting family stays with animals.
Location & Transportation
The property sits on Great Diamond Island in Casco Bay, a 30-minute ferry ride from Portland's Old Port district. Ferry service from Casco Bay Lines is the only way onto the island, reinforcing the car-free environment. Portland International Jetport Airport is 10 km from the property.
Dining
Diamond's Edge, the hotel's waterfront restaurant, offers local seafood with views over Casco Bay. A separate snack bar and poolside cabana bar provide lighter options throughout the day. The hotel also has a coffee house on site and a wine/champagne menu at the bar.
Children & Family
The hotel provides a kids' outdoor play equipment area and an indoor play area with board games and puzzles for younger guests. Family rooms with additional space are available, and the property includes a garden and outdoor fireplace for group gatherings. Activities such as kayaking, paddleboarding, and hiking are offered through a partnership with Ripple Effect.
Highlights
Transport: Car-free island, accessible only by ferry
Rooms: 44 guest rooms in converted Fort McKinley barracks
Dining: Diamond's Edge restaurant serving local seafood
Family: Kids' outdoor play equipment and indoor play area
Outdoors: Heated pool, kayaking, paddleboarding, hiking
“The Inn at Diamond Cove truly offers a tranquil island escape, with the promise of relaxation amplified by its pristine pool and thoughtfully maintained grounds. While the island itself invites exploration, the inn's attentive staff and comfortable rooms, coupled with surprisingly delicious food options, make it a place one might readily return to. It's that rare find where the journey, ferry included, feels like an integral part of the peaceful unwinding.”
James DavidEditor-in-Chief at Usmaine
Select your room type
Inn At Diamond Cove offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Double Queen Suite Balcony
2 persons
79 sq. feet
2 Double beds
Air conditioning
Balcony
room details
King Room Balcony
2 persons
1 King-size bed
Air conditioning
Balcony
room details
King Room
2 persons
1 King-size bed
Air conditioning
Heating
room details
Show all rooms
Price and Room Availability Calendar
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Check-in/ Check-out
Facilities
Inn At Diamond Cove offers amenities for your comfortable stay and unforgettable experiences
Facilities: Perfect
9.5/10Review score
General
No smoking on site
Wi-Fi
No pets allowed
Rooms/ Facilities for disabled
Security
Luggage storage
Lift
Coffee shop
Fireplace
Smoke detectors
Fire extinguishers
Key card access
Sports & Fitness
Fitness centre
Hiking
Tennis court
Bowling
Billiard tables
Fishing
Services
Grocery shopping service
Welcome drink
Dining
Restaurant
Snack bar
Bar/ Lounge area
Packed lunches
Children
Board games
Children's play area
Spa & Leisure
Seasonal outdoor pool
Beach access
Sun loungers
Garden area
Jacuzzi
Room features
Air conditioning
Soundproofed rooms
Sitting area
Garden furniture
Dining table
Media
Flat-screen TV
AM/FM alarm clock
Room decor
Carpeted floor
Show more
Dining Onsite
Inn At Diamond Cove presents a delightful array of dining experiences that celebrate the unique flavors of Maine, complemented by stunning waterfront views. Guests can indulge in casual fine dining, relaxed café meals, or refreshing drinks by the pool, ensuring a satisfying culinary experience at every moment of the day.
Diamond's Edge
Casual fine dining
Ambiance
Waterfront vistas overlooking Casco Bay, steps away from a full-service marina.
Key Offerings
Signature dishes showcase local seafood, complemented by a thoughtfully curated wine list; perfect for leisurely evenings.
Reservation
Yes
Hours vary; lunch and dinner available.
The Lobby Cafe
Casual café
Ambiance
Warm and inviting interiors, ideal for relaxed meals throughout the day.
Key Offerings
Offers an array of breakfast and lunch options featuring classic favorites, perfect for refueling before exploring the island.
Reservation
No
Breakfast, Lunch, Dinner
Cabana Bar
Poolside bar
Ambiance
Laid-back atmosphere beside the swimming pool, offering a leisurely escape.
Key Offerings
Serves light lunch fare and refreshing cocktails, perfect for a sunny day by the water.
Reservation
No
Lunch only
Inn At Diamond Cove Location
18 Mckinley Ct, Portland, 04109,
Explore Portland
Explore Local Gems
Top Attractions
Activities
Dining
Entertainment
Great Diamond Island
6 minutes walking
Great Diamond Island features stunning coastal views and nature trails. A perfect spot for picnics and outdoor relaxation.
Cow Island
15 minutes walking
Cow Island offers scenic walking paths and beautiful beaches, ideal for a leisurely afternoon near the water.
Fort Lyon
15 minutes walking
Fort Lyon, a historical site, provides insights into military history with its preserved structures and beautiful shoreline.
Echo Pond
25 minutes walking
Echo Pond is a tranquil spot featuring walking trails, excellent for nature walks or bird watching.
Kayaking Tours
6 minutes driving
Guided kayaking tours allow guests to paddle the local waters, providing an adventurous outing for thrill-seekers.
Yoga Classes
15 minutes driving
Local studios offer yoga classes. A relaxing way to unwind amidst Portland's natural beauty.
Biking Trails
15 minutes driving
Biking trails nearby cater to various skill levels, ensuring a fun and active outing for families and solo travelers.
Diamond Cove General Store
5 minutes walking
This casual spot offers local specialties and grocery items with a relaxed atmosphere perfect for families.
Willard Beach Restaurant
10 minutes driving
A seaside gem serving fresh seafood and American cuisine with stunning beach views, ideal for couples.
Lenny's Seafood
15 minutes driving
Known for its award-winning lobster rolls, this vibrant eatery features casual dining with fresh, local ingredients.
Portland Comedy Club
15 minutes driving
A lively venue hosting weekly comedy shows, providing an entertaining night out for guests of all ages.
Maine Historical Society
15 minutes driving
Explore exhibits featuring local history, perfect for cultural enthusiasts and families alike seeking educational fun.
Space Gallery
15 minutes driving
This dynamic arts venue showcases contemporary visual and performance art, offering a unique evening experience.
Getting around
City Centre
Portland 6 min · 1700 ft
Airports
Portland International Jetport (PWM) 22 min · 8.8 mi
Augusta State (AUG) 142 min · 58.6 mi
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Property information and rules
Check-in
from 16:00-22:00
Check-out
from 08:00-11:00
Guest Parking
No parking available.
Internet
Wireless internet is available in the entire hotel for free.
Children & extra beds
There are no extra beds provided in a room. There are no cots provided in a room.
Pets
Pets are not allowed.
Number of rooms:
44
Reviews and Ratings
Feedback about Inn At Diamond Cove from previous guests about their experience.
Review score
Based on 82 verified reviews
8.1 /10
Great
74 %
Recommend
Cleanliness
9.6/10
Comfort
9.6/10
Facilities
9.5/10
Location
9.3/10
Staff
9.5/10
Value for money
9.3/10
Pros
Clean rooms
Tranquil island
Attentive staff
Lovely walking trails
Sea glass beach
Cons
Limited food options
Inconsistent heating
Guest reviews
based on 27 reviews
9.2/10
No reviews yet on our siteUnfortunately, our guests have not yet left any reviews for this hotel, but you can read reviews from Booking.com.
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