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Inn at Diamond Cove

3.5 star property

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Photo gallery for Inn at Diamond Cove

Outdoor pool, sun loungers
Beach nearby
2 restaurants, lunch served
Marina
Lobby

Reviews

8.8 out of 10
Excellent

Popular amenities

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

Explore the area

View in a map
22 Mckinley Court, Great Diamond Island, Portland, ME, 04109
  • Place, Little Diamond Island
    ‪5 min drive‬
  • Place, Portland Museum of Art
    ‪29 min drive‬
  • Place, State Theatre
    ‪30 min drive‬
  • Airport, Portland, ME (PWM-Portland Intl. Jetport)
    ‪37 min drive‬

Room options

View all photos for King Room

King Room | 1 bedroom, premium bedding, soundproofing, iron/ironing board

King Room

9.0 out of 10
Wonderful
(9 reviews)
  • Resort view
  • Sleeps 2
  • 1 King Bed

View all photos for King Room with Balcony

1 bedroom, premium bedding, soundproofing, iron/ironing board

King Room with Balcony

9.8 out of 10
Exceptional
(6 reviews)
  • Resort view
  • Sleeps 2
  • 1 King Bed

View all photos for Double Queen Room with Balcony

Double Queen Room with Balcony | 1 bedroom, premium bedding, soundproofing, iron/ironing board

Double Queen Room with Balcony

7.4 out of 10
Good
(3 reviews)
  • Resort view
  • Sleeps 4
  • 2 Queen Beds

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)
  • Resort view
  • Sleeps 3
  • 1 King Bed and 1 Large Twin Sofa Bed

View all photos for King Room with Sitting Area and Balcony

1 bedroom, premium bedding, soundproofing, iron/ironing board

King Room with Sitting Area and Balcony

10.0 out of 10
Exceptional
(3 reviews)
  • Resort view
  • Sleeps 3
  • 1 Large Twin Sofa Bed and 1 King Bed

View all photos for Double Queen Suite with Balcony

1 bedroom, premium bedding, soundproofing, iron/ironing board

Double Queen Suite with Balcony

  • 1 bedroom
  • Resort view
  • Sleeps 5
  • 2 Queen Beds and 1 Large Twin Sofa Bed

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

1 bedroom, premium bedding, soundproofing, iron/ironing board

King Suite with Two Sofa Beds and Balcony

  • 1 bedroom
  • Resort view
  • Sleeps 4
  • 2 Large Twin Sofa Beds and 1 King Bed

View all photos for King Suite with Balcony - Disability Access

King Suite with Balcony - Disability Access | 1 bedroom, premium bedding, soundproofing, iron/ironing board

King Suite with Balcony - Disability Access

10.0 out of 10
Exceptional
(1 review)
  • 1 bedroom
  • Resort view
  • Sleeps 4
  • 1 King Bed and 2 Large Twin Sofa Beds

View all photos for Two Bedroom King Suite with Balcony

1 bedroom, premium bedding, soundproofing, iron/ironing board

Two Bedroom King Suite with Balcony

  • 2 bedrooms
  • Resort view
  • Sleeps 5
  • 2 King Beds

View all photos for King Suite with Balcony

1 bedroom, premium bedding, soundproofing, iron/ironing board

King Suite with Balcony

10.0 out of 10
Exceptional
(1 review)
  • 1 bedroom
  • Resort view
  • Sleeps 3
  • 1 King Bed and 1 Large Twin Sofa Bed

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

1 bedroom, premium bedding, soundproofing, iron/ironing board

Double Queen Suite with Balcony - Disability Access

  • 1 bedroom
  • Resort view
  • Sleeps 5
  • 1 Twin Sofa Bed and 2 Queen Beds

View all photos for King Suite with Sitting Area

1 bedroom, premium bedding, soundproofing, iron/ironing board

King Suite with Sitting Area

8.4 out of 10
Very good
(6 reviews)
  • 1 bedroom
  • Resort view
  • Sleeps 4
  • 1 King Bed and 1 Twin Sofa Bed

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About this property

Inn at Diamond Cove

3.5-star Portland hotel with marina
Along with 2 restaurants, this smoke-free hotel has a marina and an outdoor pool. Other amenities include 3 bars/lounges, a fitness center, and a snack bar/deli. Housekeeping is available on request.
Inn at Diamond Cove offers 44 air-conditioned accommodations with coffee/tea makers and irons/ironing boards. Beds feature premium bedding. Flat-screen televisions come with cable channels.

Bathrooms include showers and complimentary toiletries. Guests can surf the web using the complimentary wireless Internet access (speed: 250+ Mbps (good for 3–5 people or up to 10 devices)). Housekeeping is provided on request.

An outdoor tennis court and a marina are featured at the hotel. In addition to an outdoor pool, other recreational amenities include a fitness center.

The recreational activities listed below are available either on site or nearby; fees may apply.

In addition to a marina, Inn at Diamond Cove features an outdoor tennis court and an outdoor pool. Dining is available at one of the hotel's 2 restaurants and guests can grab coffee at the coffee shop/café. The property also has a snack bar/deli. Guests can unwind with a drink at one of the hotel's 3 bars/lounges.

This 3.5-star property offers access to a business center and meeting rooms. This Portland hotel also offers a fitness center, a terrace, and a garden.

Inn at Diamond Cove is a smoke-free property.

Full breakfasts are available for a surcharge and are served each morning between 7:00 AM and 11:00 AM.
Diamond's Edge - Overlooking the ocean, this restaurant serves lunch and dinner. Guests can enjoy alfresco dining (weather permitting).
Lobby Bar & Cafe - This lobby lounge serves dinner and light fare. Open daily.
Cabana Bar - Onsite bar. Open daily.

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

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

Reviews

Inn at Diamond Cove Reviews

8.8

Excellent

9.6/10

Cleanliness

8.8/10

Staff & service

8.2/10

Amenities

9.2/10

Property conditions & facilities

8.8/10

Eco-friendliness
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

8/10 Good

Paula

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 2 nights in Aug 2025

10/10 Excellent

Sherri A

Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Diamond Cove is a peaceful and beautiful property. I highly recommend.
Stayed 2 nights in Aug 2025

2/10 Terrible

Heidi

Traveled with family
Liked: Cleanliness
Disliked: Staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Aug 2025

10/10 Excellent

Anthony

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 4 nights in Jul 2025

10/10 Excellent

Stephen

Stayed 1 night in Jul 2025

6/10 Okay

Matthew

Traveled with group
Disliked: Cleanliness, property conditions & facilities, room comfort

Beautiful Island, Hot Stay

The island is beautiful! The stay at the hotel was okay, the staff were amazing, funny, and friendly. However a lot of items at the hotel needed repair it felt like. The hot tub jets didn’t work, but it was still nice and warm. The worst part was that the A/C in the room didn’t work it was so hot, they did offer us fans but it was terrible. We tried to keep the door open but bugs kept coming in. Again the staff were amazing, just for the price and the current conditions of the hotel it was not worth it. Once they get the A/C fixed and put some TLC into the pool area and decks of the rooms it would be worth it. They did have complementary snores and games!!
Stayed 1 night in Jul 2025

10/10 Excellent

Katrina

Traveled with group
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

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

Pascha

Traveled with family
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

10/10 Excellent

Nathanael

Stayed 1 night in Jul 2025

4/10 Poor

Catherine

Traveled with family
Liked: Cleanliness
Disliked: Amenities, property conditions & facilities
Inn was overpriced ($600/night) for what you get. Limited food options and expensive based on quality. Nowhere to pick up a quick sandwich or muffin or fruit or yogurt…The food service was VERY slow ( min of 1.5 hr every time). Our breakfast was cold and overcooked. After waiting, entree never arrived and they had run out. Hot tub was broken and staff had no idea when it would be fixed. Ac was overloaded and didn’t work on arrival. Website indicates yoga on Sundays but was not accurate. Inn is inland not directly on the water.
Stayed 3 nights in Jul 2025

10/10 Excellent

Madeleine

Traveled with family and small children
Liked: Amenities, property conditions & facilities
We love it here!
Stayed 1 night in Jul 2025

10/10 Excellent

Jillian

Stayed 2 nights in Jun 2025

10/10 Excellent

Kenneth

Liked: Cleanliness, staff & service, property conditions & facilities
Great Inn
Stayed 1 night in Jun 2025

6/10 Okay

Layla

Traveled with partner
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

Verified traveler

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

Awesome!

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

6/10 Okay

Karen

Traveled with partner
Disliked: Amenities, property conditions & facilities
The hotel is over priced for what it is. Pool wasn’t clean and peeling paint. The rooms were nice, balcony is shared which was ok. It was beginning of the season so no one really knew who was doing what. Drinks weren’t good but I think they are struggling to get help. There is no where to buy anything outside of candy, icecream and small alcohol section. Lunch by the pool was simple but nice.
Stayed 1 night in Jun 2025

10/10 Excellent

Erin

Stayed 1 night in Jun 2025

10/10 Excellent

Anthony

Traveled with family
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

Jaeyoung

Stayed 1 night in May 2025

2/10 Terrible

JESSICA

Stayed 1 night in Oct 2024

10/10 Excellent

Dayna

Liked: Cleanliness, staff & service, property conditions & facilities
Lication
Stayed 1 night in Aug 2024

10/10 Excellent

Amy

Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great stay at Diamond Inn. Highly recommend!
Stayed 2 nights in Oct 2024

6/10 Okay

John

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Oct 2024

10/10 Excellent

Ronald

Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Unique experience We loved our visit and want to go back.
Stayed 1 night in Oct 2024