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Inn at Diamond Cove

Travelzoo Staff

Why We Love This Hotel

  • Seasonal inn open May-October on car-free island
  • Features private beaches, outdoor pool, fire pits and rec. center with yoga classes
  • Waterfront seafood restaurant is open for lunch, dinner, and weekend brunch

"Service and room and hotel in general were excellent and well maintained. Staff was lovely. Other guests could be a challenge. Very demanding, thought world revolved around them. Felt sorry for the staff. Some guests were delightful."
Jul 1, 2019 - South Hamilton, MA, USA
See All 58 Member Ratings

Rooms & Rates

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First constructed as barracks for Fort McKinley in the 1890s, the Inn at Diamond Cove is now a peaceful destination where guests can unwind on Maine’s Great Diamond Island or explore its surrounding waters. Open Memorial Day through Columbus Day, the inn rests on a car-free island, and visitors are transported by golf carts and bicycles.

Guest rooms feature free Wi-Fi, hardwood floors, granite-top bathroom vanities, plush bathrobes, microwaves, coffeemakers, and pillowtop mattresses; guests have the choice of one king or two queen beds, and most rooms have private balconies. 

Diamond’s Edge, the property’s waterfront restaurant, serves local seafood and New England favorites for breakfast, lunch and dinner; room service is also available. The inn’s grounds include private beaches and wooded walking paths as well as a recreational hall with an indoor basketball court, an exercise studio with guided yoga classes and an antique duckpin bowling lane. All guests can enjoy the lobby lounge’s double fireplace as well as the outdoor fire pit. The heated outdoor pool includes a whirlpool tub and cabana bar serving handcrafted cocktails and snacks.

Guests can reach the property by taking a water taxi, the Casco Bay Lines Ferry service or by private boat, which can be moored in the on-site marina. 



  • Infant cots / cribs
  • Bar
  • Newspaper / magazines
  • Fitness classes
  • Games room
  • Gym / fitness center
  • Hot Tub / Jacuzzi
  • Outdoor pool
  • Pool bar
  • Restaurant
  • Tennis courts
  • No pets allowed
  • 100% smoke-free


  • 24-hour front desk
  • Bike rental
  • Complimentary chauffeur service
  • Concierge service
  • Laundry / dry cleaning
  • Room service (limited hours)
  • Safe in reception

Room amenities

  • Air-conditioning
  • Central heating
  • Coffee / tea-making facilities
  • Fridge
  • Iron and ironing board
  • Flatscreen TV


  • Complimentary Wi-Fi in guest rooms
  • Complimentary Wi-Fi in public areas
  • Complimentary Wi-Fi throughout the hotel


  • Bathrobes and slippers
  • Hair-dryer
  • Separate shower
  • Luxury toiletries
  • Slippers


  • Valet service (fees apply)


  • Accessible bathroom in some rooms
  • Accessible path of travel
  • Accessible restaurant
  • ADA compliant rooms
  • Roll-in shower
  • Wheelchair accessible


Check-in: Standard Time is 4pm.
Minimum age required to check in: 18.

Checkout: Standard Time is 11am.

Note: Includes guaranteed complimentary late checkout at 1pm when booking the "Travelzoo Deal" rate.

Children and additional guests: Children 17 and under stay free of charge when using existing bedding.
Extra beds are not available.
Crib/Pack 'n Play available upon request, free of charge, for children 2 and under.

Pets: Only service animals allowed.

Fees: A resort/facility fee of $20 per night will be added to the total price of your stay upon check out.

The resort fee includes:

  • On Island transportation
  • Wi-fi
  • Access to the pool, gameroom, fitness center
  • Complimentary use of the tennis courts and rackets, and basketball court

Valet Parking fee: $40 USD plus tax, per day.
Valet Parking is available in Portland and charges will be added to your bill at the hotel. The island is car-free.

Cancellation: Cancellation policy & booking conditions vary by 'rate plan'. These will be displayed on the payment page after you have searched for your dates and selected a rate.

Additional details: Please click on the link below to see important information about getting to The Inn.

Have a Question? Contact Travelzoo.

Customer service available Monday - Friday 9am - 6pm GMT + 8.

Rates may vary by date, are subject to availability and are not guaranteed until your purchase is complete.

Please note: Some amenities and services may not be available in all rooms or may incur an additional charge. All prices stated have been verified at the time of publication and may vary at the discretion of the hotel.

Enjoyed This
(58 Member Ratings)
Ratings & reviews reflect verified member feedback for Inn At Diamond Cove over the past 15 months.
4.5 Ambiance
4.7 Location
4.7 Rooms
4.3 Quality of Service
4.2 Value for the Money
Show Reviews
Enjoyed Most
Service and room and hotel in general were excellent and well maintained. Staff was lovely. Other guests could be a challenge. Very demanding, thought world revolved around them. Felt sorry for the staff. Some guests were delightful.
Other Comments
If Travelzoo offers another deal, we will definitely go.
Katharine Jul 01, 2019 South Hamilton, MA, USA
Enjoyed Most
Staff was pleasant.
Other Comments
Small room with no seating. Most rooms had a porch. Ours did not. Very isolated. Not much to do.
Janet Jun 30, 2019 Marblehead, MA, USA
Enjoyed Most
Language barriers with wait staff in restaurant, but mostly ok. Seemed a bit unorganized. They did not agree right off to honor the travelzoo perk that included late check out. Ultimately they did not give us a hard time but we decided to just leave at the regular check out time.
Other Comments
Would stay again with the travelzoo deal but not at the normal rate, seems very overpriced.
Stephanie Jun 24, 2019 Raymond, ME, USA
Enjoyed Most
Hotel and location where great. Staff was 50/50. They seemed really unorganized and under-trained with no real management oversight. Service was super slow with servers standing around inside while customers were at the pool waiting for anyone to see if they wanted to buy drinks.....
Other Comments
Train your Staff!
Christopher Jun 24, 2019 Falmouth, ME, USA
Enjoyed Most
Being away from it all
Other Comments
Staff is great
George Jun 21, 2019 Harrison, ME, USA
Enjoyed Most
Room was beautiful, Dinner at the Diamond Edge Restaurant was great. Staff at the Inn very attentive. Interesting history and secluded get a way.
Other Comments
There is no access to cash on the Island (ATM) so it was rather difficult to tip the golf card "rides" to and from the dock and Restaurant. You may want to let people know. The value was good for the room (price paid) but the daily parking ($40) and resort fee ($20), round trip transportation to the Island ($11.00 each), and taxes in Maine really added up...so in the end it rally was an expensive weekend.
aileen Jun 18, 2019 Newington, NH, USA
Enjoyed Most
The golf cart island tour was great - we got to see all the beaches, and the guide had great commentary.
Melissa Jun 13, 2019 Waltham, MA, USA
Enjoyed Most
Young wait staff were lovely.
Marie Jun 11, 2019 Foxborough, MA, USA
Enjoyed Most
The Inn was warm and inviting. A very quiet setting away from the ha-bub of life. The staff was attentive but not overly so: just right. A serene setting with lots of history.
Kathleen Jun 03, 2019 Brewer, ME, USA
Enjoyed Most
King suites great staff newly renovated very nice
catherine May 28, 2019 Portsmouth, RI, USA

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