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From276US$ /night
Check-in
13Dec2025Select date
Check-out
14Dec2025Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

18 Mckinley Ct, Portland, Maine, United States, 04109
-
Near the waterfront
Perfect
8.1
8.4
/10
4.2
4.4
/5

Location

The Inn at Diamond Cove is situated on Great Diamond Island in Maine's Casco Bay. Accessible by ferry or private boat from downtown Portland, the hotel offers a serene and nature-filled escape. Rich in history, the hotel occupies the former Barracks of Fort McKinley, which dates back to the 1890s.

Rooms

The hotel offers a variety of guest rooms, including deluxe condos and multi-level lofts, each inspired by coastal surroundings. Some rooms come equipped with full kitchens and semi-private decks, perfect for families or larger groups. Select suites provide custom-made furnishings and luxurious bathrooms featuring spacious granite-top vanities.

Dining

Dining options include the Diamond's Edge Restaurant, which specializes in local seafood and New England favorites, serving lunch and dinner. Guests can enjoy meals indoors or on the waterfront deck with views of Diamond Cove. The Lobby Bar offers breakfast along with grab-and-go items for island adventures.

Activities

Guests can utilize complimentary bike rentals for island exploration or engage in kayak and paddleboard rentals for a fee. The property offers activities such as tennis, duckpin bowling, and an indoor basketball court. Access to walking trails, secluded beaches, and a fitness center is also available.

Weddings & Events

The Inn at Diamond Cove serves as a venue for events, with over 5,500 square feet of flexible indoor and outdoor spaces. The picturesque McKinley Grove can host up to 220 guests for ceremonies, receptions, and cocktail parties. Catering options range from breakfast buffets to traditional Maine lobster bakes.

Highlights

Location: Secluded Great Diamond Island, accessible by ferry

Rooms: Varied guest rooms, including deluxe condos and multi-level lofts

Dining: Waterfront dining at Diamond's Edge Restaurant

Activities: Complimentary bike rentals and kayak rentals

Event Space: 5,500 sq ft for weddings and gatherings

Recreation: Access to beaches, tennis courts, and walking trails

Must-do experiences

  • Savor fresh lobster rolls at The Lobster Shack on Long Island.
  • Visit Fort Gorges for stunning views and a bit of history.
  • Explore the unique art at the Portland Museum of Art downtown.
  • Take a stroll through the bustling Portland Farmers' Market on weekends.
  • Enjoy a sunset cruise in Casco Bay for breathtaking scenery.
View all

Select your room type

The hotel 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 m² 
2 Double beds
Shower
Coffee machine
King Room
2 persons
1 King-size bed
Shower
Coffee machine
King Suite Sitting Area
2 persons
1 King-size bed and 1 Sofa bed
Shower
Coffee machine
King Suite Two Sofa Beds Balcony
2 persons
1 King-size bed and 1 Sofa bed
Shower
Coffee machine
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Facilities

The hotel offers amenities for your comfortable stay and unforgettable experiences

General

  • Non-smoking rooms
  • Safe deposit box
  • 24-hour reception
  • Wheelchair access
  • Air conditioning in public areas
  • Lift
  • Smoke detectors

Sports & Fitness

  • Tennis court

Guest Parking

  • Kitchenette

Dining

  • Restaurant
  • Bar/ Lounge area

Business

  • Meeting room

Room features

  • Air conditioning
  • Sitting area
  • Dining table
  • Ironing facilities

Bathroom

  • Hair dryer

Self-catering

  • Kitchenette

Media

  • Flat-screen TV
  • Direct dial telephone
  • AM/FM alarm clock

Room decor

  • Carpeted floor
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Location

18 Mckinley Ct, Portland, Maine, United States, 04109
Map view
18 Mckinley Ct, Portland, Maine, United States, 04109
Nearby
Great Diamond Island
460 m
Restaurants
Diamond Cove General Store
210 m
255 Diamond Ave
Explore Portland
Explore Local Highlights
Top Attractions
Activities
Dining
Entertainment
Great Diamond Island
Great Diamond Island
6 minutes walking
Scenic vistas and walking trails characterize Great Diamond Island, ideal for a family day out or a peaceful nature retreat.
Cow Island
Cow Island
15 minutes walking
Cow Island features walking paths and a tranquil environment, perfect for leisurely walks and appreciating the breathtaking views.
Fort Lyon
Fort Lyon
15 minutes walking
Historic Fort Lyon provides insight into local history, offering guided tours and a glimpse of stunning coastal views.
Echo Point Light
Echo Point Light
15 minutes walking
This picturesque lighthouse at Echo Point is a charming spot for photography and enjoying the coastal scenery.
Biking on Great Diamond Island
6 minutes walking
Biking trails on Great Diamond Island offer stunning views and nature exploration, with bike rentals available on-site.
Fishing Adventures
15 minutes driving
Fishing charters are available nearby, ideal for thrill-seekers aiming to catch local fish in the beautiful Maine waters.
Yoga at Lumpkin Park
15 minutes walking
Relax and rejuvenate with yoga sessions held at Lumpkin Park, providing a peaceful ambiance for personal wellness.
Diamond Cove General Store
Diamond Cove General Store
5 minutes walking
A cozy spot offering local flavors and essentials, with sandwiches and fresh produce. Great for a casual meal or snack.
Diamond's Edge Restaurant
5 minutes driving
Known for its fresh seafood and beautiful waterfront views, this restaurant features a warm atmosphere for a relaxed dining experience.
Long Island Community Center
15 minutes walking
Hosts family-friendly events and cultural programs throughout the year, making it a great hub for community entertainment.
Peaks Island Theater
30 minutes walking
Local theater offering a variety of performances, from plays to live music, enriching the cultural landscape of the area.
Getting around
City Centre
Portland6 min  ·  500 m
Airports
Portland International Jetport (PWM)23 min  ·  14.7 km
Augusta State Airport (AUG)143 min  ·  94.9 km
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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
is available in 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
FAQs
About Inn At Diamond Cove
What are the check-in and check-out times at Inn At Diamond Cove?
Check-in is at 16:00, and check-out is at 11:00.
How far is Inn At Diamond Cove from Portland International Jetport?
The hotel is located 15 km from Portland International Jetport.
What on-site dining options are available at Inn At Diamond Cove?
Guests can dine at Diamond's Edge Restaurant and The Lobby Café.
Are there recreational facilities available at Inn At Diamond Cove?
Guests have access to an outdoor swimming pool, tennis court, and bicycle rentals.
Which room amenities are available at Inn At Diamond Cove?
Rooms include a balcony, seating area, coffee machine, and flat-screen TV.
Is parking available at Inn At Diamond Cove?
The hotel offers complimentary parking for guests.
Are pets allowed at Inn At Diamond Cove?
Pets are not permitted at the hotel.
What nearby attractions can guests visit from Inn At Diamond Cove?
Nearby attractions include Fort McKinley Museum and Portland Head Lighthouse.
What policies are in place regarding payment at Inn At Diamond Cove?
Accepted payment methods include American Express, Visa, Discover, and MasterCard.
Does Inn At Diamond Cove offer any services for business travelers?
The hotel features meeting spaces suitable for events and gatherings.
How close is Inn At Diamond Cove to the Portland city center?
The hotel is approximately 2 km from the Portland city center.

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