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Located 4 miles off the coast, The Inn at Diamond Cove is a 30-minute ferry ride from Portland, Maine, to Great Diamond Island, one of the islands of Casco Bay. Formerly a military installation, this tranquil summer retreat is a part of a vibrant historically significant site.

Nearest Airport

The nearest airport to Portland is Portland (PWM) Airport which is 2.7 miles away. Other nearby airports include Manchester (MHT) (78.3 miles), Boston (BOS) (97.6 miles), Lebanon (LEB) (103.1 miles) and Bangor (BGR) (107.5 miles). Ferry Service to the Island: Casco Bay Island Transit District (CBITD), also known as Casco Bay Lines: 56 Commercial Street, Portland, Maine 04101

Hotel Address

22 McKinley Court, Portland

Maine, United States 04109

Historic Hotels of America Recommended Points of Interest

  • Bug Light

    Bug Light

    Designed after a Greek monument in 1875, Bug Light is a small lighthouse featuring harbor views and an adjacent park.

  • Fort McKinley Museum At Diamond Cove

    Fort McKinley Museum at Diamond Cove

    Army museum, open from May to October, on Great Diamond Island, Maine, offering tours and information about former Fort McKinley.

  • Fort Williams Park

    Fort Williams Park

    Experience the historic military fortifications that reside within Fort Williams Park.

  • Portland Museum Of Art

    Portland Museum of Art

    Discover some of the finest art in the country at the Portland Museum of Art.

  • Portland Observatory

    Portland Observatory

    In 1807, Captain Lemuel Moody (1768-1846) ordered construction of this octagonal, 86-foot high tower on Munjoy Hill to serve as a communication station for Portland’s bustling harbor.

  • Spring Point Ledge Lighthouse

    Spring Point Ledge Lighthouse

    Historic caisson-style lighthouse constructed on a rocky breakwater in 1897, open year-round.