Welcome to the

Inn At Diamond Cove

A Hotel and Dining Experience off the Coast of Portland, ME

Opening May 22nd for the 2025 Season

Escape to the Inn at Diamond Cove, a tranquil island retreat nestled along the pristine shores of Great Diamond Island in Maine's sparkling Casco Bay. Take a short ferry or private boat ride from vibrant downtown Portland to be transported to a timeless place unlike any other, enhanced by the island's natural beauty and historic character.

Immerse yourself in the storied past of Fort McKinley, dating back to the 1890s. Once an integral part of the nation's coastal defense system, it safeguarded Portland's Harbor and Casco Bay. The Fort's former Barracks have been thoughtfully transformed into a unique hotel and dining destination, devoted to providing an extraordinary hospitality experience.

The inn features a variety of guest rooms which can be booked individually or together to accommodate larger groups. From basic suites, to multilevel lofts, each room is inspired by its coastal surroundings with some featuring semi-private decks and full kitchens. For those guests who do not wish to completely disconnect, complimentary WiFi is provided for all guests. For the adventurous type, guests can explore the island with complimentary bicycle rentals while kayak and paddleboard rentals are available for an additional fee.

Our culinary team is proud to present dining options that rival what you'd find on the mainland. Allow the staff of Diamond's Edge Restaurant to serve you lunch and dinner daily offering local seafood and fine American cuisine both indoors and waterside, while breakfast is offered daily at the inn. Of course, no afternoon is complete without a visit to the poolside cabana bar featuring a menu of quick serve delights, cocktails, beer and wine.

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Spacious Island Suites

Dining

Diamond's Edge Restaurant & Marina

Nestled in the heart of this charming haven, you'll stumble upon the cozy Diamond's Edge Restaurant, a rustic waterfront dining spot where artistry, heritage, and culinary craftsmanship seamlessly converge. Just a skip away from the marina, with mesmerizing ocean views of Diamond Cove, this inviting eatery exudes a down-to-earth charm, inviting you to revel in moments of pure joy. Here, the lively spirit of a bygone artistic community effortlessly blends with the echoes of Fort McKinley's storied past.

Embark on a culinary adventure that transports you back in time, savoring hearty dishes inspired by the region's bountiful seafood, beloved New England classics, and flavors that awaken your senses. Each bite tells a story, expertly crafted to elevate your dining experience. As you indulge in these mouthwatering creations, explore our extensive wine list and discover handcrafted cocktails named after the island's historic batteries, adding a touch of local charm and intrigue to your drink selection.

Relax, unwind, and let the Diamond's Edge Restaurant whisk you away to a place where comforting food, a cozy atmosphere, and scenic ocean views unite, offering a memorable dining experience that captures the true essence of this enchanting retreat.

Dining Options

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.

Great Diamond Island Portland, Maine

Unwind, rejuvenate, or plan an adventure at the Inn at Diamond Cove. More than a hotel, we've thoughtfully crafted a tranquil experience in harmony with nature in one of the most magical corners of New England. Great Diamond Island beckons couples, families, and friends to discover what Maine island life is all about.

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