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Welcome to the Inn At Diamond Cove

Located on Maine's Great Diamond Island, the Inn at Diamond Cove is a tranquil destination that provides guests with a peaceful and relaxing stay. Constructed during the 1890's Fort McKinley's was part of the country's coastal defense system to protect Portland's Harbor and Casco Bay. The Inn is housed in Fort McKinley's former Barracks and overlooks the former parade grounds. Cars are not permitted on the Island. Transportation around the Island is on Golf Carts and Bicycles!

With a brief and scenic boat ride from downtown Portland you are transported from the hustle and bustle of Portland's Old Port district through the sparkling waters of Casco Bay to peaceful Great Diamond Island. Diamond's Edge Restaurant is situated just steps from the marina, overlooking Diamond Cove. Formerly an artistic retreat community and later the historic site of Fort McKinley, Diamond's Edge remains rich in charm and history. A favorite among locals and visitors alike, Diamond's Edge Restaurant is the perfect spot for a relaxing lunch or dinner featuring local seafood, New England favorites and amazing views.

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Vacations Packages

Portland by Land and by Sea

Experience a genuine local experience! A three-night, four day visit is split between one night at the Portland Harbor Hotel and two nights at the Inn at Diamond Cove.

Dinner at the Inn

An invitation to spend the night relaxing at the Inn.

Dinner by the Water

Spend an evening under the moon along the water’s edge. A $150 credit to Diamond’s Edge Restaurant accompanies a night at the Inn at Diamond Cove.

Suite Island Romance

Indulge your loved one with luxury suite accommodations at the Inn at Diamond Cove, champagne upon arrival, dinner for two along the water at Diamond’s Edge Restaurant, chocolate covered strawberries at turndown, and a complimentary 1pm checkout.

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Dining

Diamond's Edge Restaurant & Marina

Formerly an artistic retreat community and later the historic site of Fort McKinley, Diamond's Edge remains rich in charm and history. A favorite among locals and visitors alike, Diamond's Edge Restaurant is the perfect spot for a relaxing lunch or dinner featuring local seafood, New England favorites and amazing views.

Lunch Menu (PDF)
Dinner Menu (PDF)
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Gatherings & Special Events

Diamond's Edge is a dynamic event venue on Great Diamond Island overlooking beautiful Casco Bay. Our high level of service and Island cuisine are sure to impress your guests. We make hosting a corporate outing, elegant wedding or birthday celebration easy to plan! Please contact Caitlin Euler at 207-523-2005 to book your next successful event at Diamond's Edge or The Portland Harbor Hotel.

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Great Diamond Island Portland, Maine

The Inn at Diamond Cove is a tranquil destination that provides guests with a peaceful & relaxing stay.  44 deluxe guest rooms and suites with balconies.  All suites feature a fireplace, parlor & separate dining area.

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Inn at Diamond Cove

A time to reconnect.

An Island Getaway

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