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Inn at Diamond Cove

3.5 star property
A private island sanctuary where tranquility meets activity - guests dine with water views before enjoying tennis matches or cycling adventures

Choose dates to view prices

Inn at Diamond Cove offers a peaceful island getaway surrounded by ocean panoramas and garden landscapes. Travelers can enjoy waterfront meals that showcase the scenic surroundings, then explore the island on bicycles or play a match on the tennis courts.

Reviews

8.8 out of 10
Excellent

Popular amenities

  • Pool
  • Free WiFi
  • Restaurant
  • Air conditioning
  • Gym
  • Breakfast available

Room options

Available filters for rooms
Showing 12 of 12 rooms

View all photos for King Room

King Room | Premium bedding, soundproofing, iron/ironing board, free WiFi

King Room

9.0 out of 10
Wonderful
(9 reviews)

Highlights

Soundproofed
Air conditioning
Mini-fridge
Flat-screen TV
Premium bedding
Private bathroom
Microwave
Toaster
  • Sleeps 2
  • 1 King Bed
  • Resort view

View all photos for King Room with Balcony

Premium bedding, soundproofing, iron/ironing board, free WiFi

King Room with Balcony

9.8 out of 10
Exceptional
(6 reviews)

Highlights

Balcony or patio
Soundproofed
Air conditioning
Mini-fridge
Flat-screen TV
Premium bedding
Private bathroom
Microwave
  • Sleeps 2
  • 1 King Bed
  • Resort view

View all photos for Double Queen Room with Balcony

Double Queen Room with Balcony | Premium bedding, soundproofing, iron/ironing board, free WiFi

Double Queen Room with Balcony

7.4 out of 10
Good
(3 reviews)

Highlights

Balcony or patio
Soundproofed
Air conditioning
Mini-fridge
Flat-screen TV
Premium bedding
Private bathroom
Microwave
  • Sleeps 4
  • 2 Queen Beds
  • Resort view

View all photos for Standard King Room with Fireplace and Balcony

Flat-screen TV

Standard King Room with Fireplace and Balcony

9.0 out of 10
Wonderful
(2 reviews)

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Mini-fridge
Flat-screen TV
Premium bedding
Private bathroom
  • Sleeps 3
  • 1 King Bed and 1 Large Twin Sofa Bed
  • Resort view

View all photos for King Room with Sitting Area and Balcony

Premium bedding, soundproofing, iron/ironing board, free WiFi

King Room with Sitting Area and Balcony

10.0 out of 10
Exceptional
(3 reviews)

Highlights

Balcony or patio
Soundproofed
Air conditioning
Mini-fridge
Flat-screen TV
Premium bedding
Private bathroom
Microwave
  • Sleeps 3
  • 1 Large Twin Sofa Bed and 1 King Bed
  • Resort view

View all photos for Double Queen Suite with Balcony

Premium bedding, soundproofing, iron/ironing board, free WiFi

Double Queen Suite with Balcony

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
  • 1 bedroom
  • Sleeps 5
  • 2 Queen Beds and 1 Large Twin Sofa Bed
  • Resort view

View all photos for King Suite with Two Sofa Beds and Balcony

Premium bedding, soundproofing, iron/ironing board, free WiFi

King Suite with Two Sofa Beds and Balcony

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
  • 1 bedroom
  • Sleeps 4
  • 2 Large Twin Sofa Beds and 1 King Bed
  • Resort view

View all photos for King Suite with Balcony - Disability Access

King Suite with Balcony - Disability Access | Premium bedding, soundproofing, iron/ironing board, free WiFi

King Suite with Balcony - Disability Access

10.0 out of 10
Exceptional
(1 review)

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
  • 1 bedroom
  • Sleeps 4
  • 1 King Bed and 2 Large Twin Sofa Beds
  • Garden view

View all photos for Two Bedroom King Suite with Balcony

Premium bedding, soundproofing, iron/ironing board, free WiFi

Two Bedroom King Suite with Balcony

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
  • 2 bedrooms
  • Sleeps 5
  • 2 King Beds
  • Resort view

View all photos for King Suite with Balcony

Premium bedding, soundproofing, iron/ironing board, free WiFi

King Suite with Balcony

10.0 out of 10
Exceptional
(1 review)

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
  • 1 bedroom
  • Sleeps 3
  • 1 King Bed and 1 Large Twin Sofa Bed
  • Resort view

View all photos for Double Queen Suite with Balcony - Disability Access

Premium bedding, soundproofing, iron/ironing board, free WiFi

Double Queen Suite with Balcony - Disability Access

Highlights

Balcony or patio
Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
  • 1 bedroom
  • Sleeps 5
  • 1 Twin Sofa Bed and 2 Queen Beds
  • Resort view

View all photos for King Suite with Sitting Area

Premium bedding, soundproofing, iron/ironing board, free WiFi

King Suite with Sitting Area

8.4 out of 10
Very good
(6 reviews)

Highlights

Soundproofed
Fireplace
Air conditioning
Kitchen
Mini-fridge
Dining table
Dishwasher
Flat-screen TV
  • 1 bedroom
  • Sleeps 4
  • 1 King Bed and 1 Twin Sofa Bed
  • Resort view

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About the neighborhood

Located in Portland, Inn at Diamond Cove is near the beach. State Theatre and Portland Head Light are notable landmarks, and travelers looking to shop may want to visit Maine Mall and LL Bean Flagship Store. Wadsworth-Longfellow House and Portland Museum of Art are two other places to visit that come recommended. Discover the area's water adventures with kayaking, motor boating, and boat tours nearby, or enjoy the great outdoors with hiking/biking trails. Visit our Portland travel guide
Map
22 Mckinley Court, Great Diamond Island, Portland, ME, 04109

What's nearby

  • Portland Museum of Art showing interior views and art as well as a small group of people
    Portland Museum of Art
    29 min drive - 8.0 km
  • State Theatre showing street scenes as well as an individual femail
    State Theatre
    30 min drive - 8.4 km
  • Little Diamond Island
    5 min drive - 2.2 km
  • Thompson's Point
    33 min drive - 12.3 km
  • Maine Mall
    36 min drive - 18.4 km

Getting around

  • Portland Transportation Center
    48 min drive
  • Portland Intl. Jetport Airport (PWM)
    98 min drive

Restaurants

  • Twelve
    28 min drive
  • McDonald's
    34 min drive
  • Dunkin'
    34 min drive
  • The Grateful Cup
    30 min drive
  • Angoor Wine Bar
    28 min drive

About this property

Inn at Diamond Cove

Hotel on a private island
Located close to Wadsworth-Longfellow House and Portland Museum of Art, Inn at Diamond Cove provides a marina, a terrace, and a coffee shop/cafe. Adventurous travelers may like the cycling at this hotel. At the two on-site restaurants, enjoy lunch, dinner, light fare, and ocean views. Free in-room WiFi, with speed of 250+ Mbps (good for 3–5 people or up to 10 devices), is available to all guests, along with a garden and a playground.
You'll also enjoy perks such as:
  • An outdoor pool along with sun loungers
  • Full breakfast (surcharge), bike rentals, and an outdoor tennis court
  • Luggage storage, meeting rooms, and smoke-free premises
  • A billiards/pool table and an elevator
  • Guest reviews give top marks for the helpful staff
Room features
All guestrooms at Inn at Diamond Cove offer perks such as premium bedding and wet bars, as well as amenities like free WiFi and air conditioning.
More amenities include:
  • Bathrooms with showers and free toiletries
  • Flat-screen TVs with cable channels
  • Mini fridges, microwaves, and toasters

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Property amenities

Internet

  • Available in all rooms: Free WiFi
  • In-room WiFi speed: 250+ Mbps (good for 3–5 people or up to 10 devices)

Parking and transportation

  • No onsite parking available

Food and drink

  • Daily full breakfast available 7:00 AM to 11:00 AM for a fee: USD 10 to 19 for adults and USD 5 to 14 for children
  • 2 restaurants
  • 3 bars/lounges
  • A coffee shop/cafe
  • Snack bar/deli

Restaurants on site

  • Cabana Bar
  • Diamond's Edge
  • Lobby Bar & Cafe

Things to do

  • Bicycle rentals
  • Billiards/pool table
  • Gym
  • Outdoor pool
  • Outdoor tennis court
  • Playground

Family friendly

  • In-room microwave
  • Mini-fridge
  • Outdoor pool
  • Playground
  • Snack bar/deli
  • Soundproofed rooms

Conveniences

  • Luggage storage

Guest services

  • Housekeeping (on request)

Business services

  • Business center
  • Meeting rooms

Outdoors

  • Garden
  • Marina
  • Pool loungers
  • Terrace

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Elevator
  • Handrails in hallways

More

  • Fireplace in lobby
  • Smoking not allowed

Room amenities

Bedroom

  • Premium bedding

Bathroom

  • Free toiletries
  • Private bathroom
  • Shower
  • Towels provided

Entertainment

  • Flat-screen TV with cable channels

Food and drink

  • Coffee/tea maker
  • Microwave
  • Mini-fridge
  • Toaster
  • Wet bar

More

  • Air conditioning
  • Iron/ironing board
  • Soundproofed rooms

Policies

Check-in

Check-in start time: 4 PM; Check-in end time: 10:00 PM
Minimum check-in age: 21

Check-out

Check-out before 11 AM

Special check-in instructions

There is no front desk at this property
The host will greet guests on arrival
This property doesn't offer after-hours check-in
Information provided by the property may be translated using automated translation tools

Access methods

Host will greet you

Pets

Pets not allowed (service animals are welcome, and are exempt from fees)

Children and extra beds

Children are welcome
Rollaway/extra beds are not available
Cribs (infant beds) are not available

Property payment types

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

  • Resort fee: USD 38.15 per accommodation, per night
The resort fee includes:
  • Additional inclusions
  • Beach towels
  • Fitness center access
  • In-room coffee
  • Phone calls
  • Pool access

We have included all charges provided to us by the property.

Optional extras

  • Fee for full breakfast: approximately USD 10 to 19 for adults, and USD 5 to 14 for children
  • Housekeeping is available for an additional fee and varies based on length of stay

The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
This property accepts credit cards; cash is not accepted
Cashless transactions are available
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room

We should mention

This property welcomes guests of all sexual orientations and gender identities (LGBTQ+ friendly)

Property is also known as

Inn Diamond Cove Great Diamond Island
Inn Diamond Cove
Diamond Cove Great Diamond Island
Inn at Diamond Cove Hotel
Inn at Diamond Cove Portland
Inn at Diamond Cove Hotel Portland

Frequently asked questions

Does Inn at Diamond Cove have a pool?

Yes, this property has an outdoor pool.

Is Inn at Diamond Cove pet-friendly?

No, only service animals are welcome at the property.

How much is parking?

Inn at Diamond Cove doesn't offer parking.

What time is check-in at Inn at Diamond Cove?

Check-in start time: 4 PM; Check-in end time: 10:00 PM. After-hours check-in is not available.

What time is check-out at Inn at Diamond Cove?

Check-out is at 11 AM.

Where is Inn at Diamond Cove located?

Situated near the beach, this hotel is within 9 mi (15 km) of State Theatre, Wadsworth-Longfellow House, and Portland Museum of Art. Portland Head Light and Maine Mall are also within 12 mi (20 km).

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Reviews

Inn at Diamond Cove Reviews

8.8

Excellent

9.6

Cleanliness

9.2

Location

8.8

Staff & service

9.2

Property conditions & facilities
Rating 10 - Excellent. 128 out of 195 reviews
Rating 8 - Good. 32 out of 195 reviews
Rating 6 - Okay. 20 out of 195 reviews
Rating 4 - Poor. 8 out of 195 reviews
Rating 2 - Terrible. 7 out of 195 reviews

Reviews

10/10 Excellent

Alan

Liked: Cleanliness, staff & service, property conditions & facilities
Great rooms and staff and local restaurants.
Stayed 2 nights in Aug 2025

10/10 Excellent

Linda

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Beautiful room, comfortable bed unique property!
Stayed 1 night in Oct 2025

10/10 Excellent

robert

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Property was well kept, clean, quiet and comfortable. The staff was super friendly and nice. The rooms were spacious and clean and the surroundings were beautiful. Great place! Would highly recommend it!
Stayed 2 nights in Sep 2025

8/10 Good

janice

Liked: Cleanliness, staff & service, property conditions & facilities
it was very unique having to take a ferry over, shuttle by golf cart and bikes. late in season only 1 restaurant available. looking for peace and quiet- this it the place. lots to walk around and look at with the old fort there.
Stayed 2 nights in Sep 2025

10/10 Excellent

Katrina

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We had an amazing stay! What a gem of an experience - all of the staff was wonderful - Antonio at the lobby cafe was so kind and friendly and Kayla at concierge always went above and beyond!!
Stayed 3 nights in Jul 2025

10/10 Excellent

Pascha

Liked: Cleanliness, amenities, property conditions & facilities
Such an amazing property, felt like stepping into a Hallmark movie, the rooms were spacios and decorated beautifully, the staff was amzing. I wish I could have stayed there for at least a week.
Stayed 1 night in Jun 2025

8/10 Good

Paula

Liked: Amenities
The property was beautiful, the rooms were beautiful the staff was very friendly and helpful . The trails were nice walking the beach was so very cool. The dinning wasn’t very good but they were accommodating .
Stayed 1 night in Jul 2025

10/10 Excellent

Anthony

Liked: Cleanliness, amenities, property conditions & facilities
Great staff service. Very high quality private stay. Amazing room. Also a really lovely historic tour too.
Stayed 1 night in May 2025

10/10 Excellent

Verified traveler

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Awesome!

Wonderful! Peaceful, clean, beautiful. Great staff.
Stayed 3 nights in Jun 2025

10/10 Excellent

Matthew

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Great stay

Wonderful staff, beautiful island very comfortable hotel. Would definitely recommend it
Stayed 1 night in Oct 2024

10/10 Excellent

Mike

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great stay. Very relaxing
Stayed 1 night in Sep 2024

10/10 Excellent

Kristian

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This whole island was amazing, the staff was very easy going and friendly, didn’t even find a single hair in the room it came with pots and pans and an amazing view
Stayed 1 night in Sep 2024

10/10 Excellent

Margaret

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful hotel on the island! Staff were warm and welcoming!
Stayed 1 night in Sep 2023

10/10 Excellent

Gail

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This resort is a “Diamond “ waiting to be explored !! Wonderful and beautiful resort . I loved that you can walk to explore the surroundings and see nature in its radiance in the fall
Stayed 1 night in Oct 2024

10/10 Excellent

valerie

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Amazing getaway !! This island and the hotel was the perfect vacation we needed!
Stayed 2 nights in Aug 2023

10/10 Excellent

derek

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful stay. Tranquil and well kept. Hidden gem. FYI: Monday and Tuesday the two other Restaurants on the island are closed but the hotel lobby bar has everything you need for breakfast, lunch, and dinner.
Stayed 1 night in Aug 2024

10/10 Excellent

Walter

Liked: Staff & service, room comfort

Can’t wait to go back

Amazing accommodations and the staff was first class. Would highly recommend any personal or business trip there. Cannot commend the staff nearly enough. The rooms were amazing, scenery is unreal, and the food was excellent.
Stayed 1 night in Sep 2023

8/10 Good

Thomas

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Great hotel and lovely experience

Hotel was amazing, as were the restaurants and facilities. Very quaint, yet luxurious. They weren’t fully staffed yet, but they helped us any way we asked them to. Would definitely do it again.
Stayed 2 nights in Jun 2024

10/10 Excellent

JEFFREY

Liked: Cleanliness, staff & service, property conditions & facilities
Beautiful conversion of an old military facility to a hotel. Great pool area. Spacious, clean, confortable room. Nature surrounds with walking trails. Food OK, but could be improved to match the remainder of the experience. Fun to ride ferry to the island.
Stayed 4 nights in Jul 2024

10/10 Excellent

Sean

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
A beautiful, quiet, oasis in the middle of Casco bay. I had the joy of staying at this property for four days. I love the ambiance, atmosphere, and the tranquility this place offers. The staff was so polite and made our stay so much better. I highly recommend!
Stayed 4 nights in Jun 2024

10/10 Excellent

Caitlyn

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Our stay at the inn was one of a kind. The location is gorgeous and we loved escaping the hustle and bustle of Portland for a relaxing evening on the island. Highly recommend!
Stayed 2 nights in Aug 2023

10/10 Excellent

Carolynne

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Great experience at Diamond Cove

We had a wonderful gathering of friends at Diamond Cove. It was delightful on all fronts! Lovely accommodations, good food, and a very helpful staff! Thanks you.
Stayed 2 nights in Sep 2023

6/10 Okay

Layla

Liked: Cleanliness, amenities, property conditions & facilities
The property is beautiful and the staff is always pleasant and talkative. However, since checking out there was an extra charge added to my card of a little over $100. I reached out to the Cove and was asked to send an email providing proof. Three days passed and I called numerous times with no answer to my calls or email. During my stay I had issues where I was charged almost $600 but was told it was due to booking with a 3rd party (Expedia). While that issue was resolved before check out I was not informed of any other charges outside the resort fee for after check out.
Stayed 4 nights in Jun 2025

10/10 Excellent

Gilbert

Liked: Cleanliness, staff & service, property conditions & facilities
The parking in the city was difficult and expensive. The Foggs ferry to the island was good. The hotel and grounds beautifully kept. The food was not all that good for me (linguini and clams) but my wife enjoyed her dish (cod fish sandwich). Bar drinks were expensive.
Stayed 1 night in Jul 2024

8/10 Good

Randimae

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We had a great stay! And everyone was very nice! And it was Beautiful and peaceful!! The only thing I will say is if you have to leave early arrange transport to the ferry the night before because the front desk is not open early, And calling the number went straight to voice mail. Also, coffee in the morning was not easily accessible. Will definitely go back… and I will take extra keurig pods ☕️
Stayed 4 nights in Aug 2024