Skip to main content Skip to footer Go to Accessibility Page

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 which is part of what makes it so magical.

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.

Book Now

Vacation Amenities

Property amenities to bring your Maine vacation to life.

Explore Amenities

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.  The Lobby Bar Cafe features a cafe-style breakfast featuring Starbucks products, a grab-n-go lunch offering, and a lite bites menus and beverages for casual evening fare.

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 us at 207-523-2050 to book your next successful event at Diamond's Edge or The Portland Harbor Hotel.

Explore Private Events

Great Diamond Island Portland, Maine

The Inn at Diamond Cove is a tranquil destination that provides guests with a peaceful & relaxing stay.  22 luxury island condominiums with balconies.  All condos feature a fireplace, parlor & separate dining area.

Explore the Area

Join our Mailing List for news & Offers:

Subscribe