Inn at Diamond Cove

The ferry ride is the first sign that you've left the mainland behind. A thirty-minute journey from Portland's Old Port delivers you to Great Diamond Island, where the Inn at Diamond Cove sits as a working retreat from the world - not a theme-park version of island life. The property occupies a storied perch in Casco Bay with 44 rooms ranging from straightforward kings to multi-bedroom suites, most with balconies overlooking water. The main building holds Diamonds Edge, a waterfront restaurant, and a heated pool. Walking trails crisscross the island. The vibe skews toward couples and families seeking genuine quiet, though the ferry schedule and limited off-season dining mean this isn't a place to arrive unprepared.

The guest score of 9.0 from 27 reviews reflects a property that delivers on its core promise - serenity and a real sense of escape. Couples dominate the reviews. September and October stays cluster heavily, suggesting a strong shoulder-season draw. The recurring compliments are specific: beautiful rooms, comfortable beds, high-quality linens, attentive staff (named individuals like Fernando and Maria appear in multiple reviews), and the sheer peace of the setting. The honest criticisms cluster around staffing stretch during shoulder season, occasional maintenance lapses (especially in late September and early October), and dining that swings from excellent to uneven depending on when you visit.

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The location genuinely feels like another world - thirty minutes from Portland. Guests across multiple reviews note the paradox: you're close enough to the city to make the ferry convenient, yet far enough away that the island feels remote. One reviewer from Latvia described it perfectly: "Although it's so close to Portland, it felt like we were in a different part of the world." The ferry ride itself becomes part of the experience, not a deterrent for most visitors.

Rooms are spacious, well-appointed, and designed for lingering. The most consistent praise targets the beds (described repeatedly as "super comfortable"), high-quality linens, generous bathrooms, and the presence of balconies or decks with rocking chairs. Many rooms include fireplaces or sitting areas. The kitchenettes in suites appeal to families planning longer stays. A reviewer who stayed five nights highlighted the little touches - comfortable seating, ample space - that made the extended visit pleasant rather than monotonous.

The staff knows your name and what you need. When service is at full strength, it shines. Fernando, Maria, and several others are cited by name in reviews for being "wonderful," "attentive," and "super friendly." This isn't a large-chain anonymity. Guests feel recognized. That said, shoulder-season visits (late September, early October) often catch the property understaffed, leading to slow coffee refills and delayed responses - a reality to factor in if you're booking those months.

Island trails, beaches, kayaking, and genuine disconnection. The property stocks bicycles, offers kayak and paddleboard access, and the island itself is ringed with walking paths. A reviewer noted discovering "a beautiful play structure for kids near the hotel" while exploring. Another guest spent their stay "exploring the island" with consistent joy. The pool and hot tub are heated, making shoulder-season swims viable.

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The inn occupies a multi-building layout with rooms ranging from efficient kings to sprawling two-bedroom suites. All units have balconies or patios, and many include fireplaces or sitting areas. Decor trends toward elegantly traditional rather than trendy - think high-quality linens, flat-screen TVs, and functional bathrooms with generous towels. The rooms are notably quiet, which guests appreciate.

• King Room – The straightforward anchor offering; appears across dozens of reviews as comfortable and well-appointed.
• King Room with Balcony – Added outdoor space; the most frequently booked variant.
• King Room with Fireplace and Balcony – Includes a working fireplace (though occasionally maintenance lapses occur in shoulder season).
• Double Queen Room with Balcony – Ideal for small families; larger bathroom and more square footage.
• Two-Bedroom King Suite with Balcony – Multi-room configuration for groups or extended families; kitchenette included.
• King Suite with Sitting Area – Separate seating zone and enhanced finishes.
• Double Queen Suite with Balcony – Suite-level appointments with dual queens and kitchenette.

One caveat drawn from multiple reviews: some rooms - particularly kings in certain buildings - feature blackout curtains as the only window treatment, creating a choice between pitch darkness or visibility into the room from outside. If light control and privacy matter to you, mention this preference when booking.

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Pool & Grounds · Heated outdoor swimming pool (seasonal) · Hot tub / Jacuzzi · Outdoor fireplace (weather-dependent; verify it's functional before relying on it) · Garden areas with outdoor seating · Rocking chair-lined decks

Activities & Recreation · Bicycle rentals · Tennis court · Hiking trails · Beach access · Kayak and paddleboard rental / instruction · Fishing · Board games and puzzles · Indoor play area for children · Bowling · Pool table

Dining & Drink · Diamonds Edge restaurant (waterfront, limited off-season hours) · Coffee house on-site · Wine and champagne service · Snack bar · Full bar

For Families · Interconnecting rooms available · Family rooms · Outdoor play equipment · Board games · Flat-screen TVs in rooms · Packed lunches available · Grocery deliveries (call ahead)

Practical · Free WiFi throughout · Fitness center · Air conditioning and heating in all rooms · Soundproof rooms · Elevator access to upper floors · Baggage storage · Wake-up service · Facilities for disabled guests (upper floors accessible by elevator)

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The waterfront restaurant, Diamonds Edge, is the property's signature dining venue and a genuine draw when fully operational. Guests who visit during peak season (summer and early fall) report elevated fare - smoked salmon, overnight oats, and thoughtful presentations. The view across Casco Bay from the dining room is exceptional. However, the same restaurant closes to outside diners on certain off-season weekdays (Monday–Wednesday are common closure days), and the menu contracts significantly in shoulder season. Spring and fall visitors should confirm restaurant hours in advance or plan to bring supplementary groceries (several reviews suggest this, and the hotel staff acknowledge it off-season).

The heated outdoor pool and hot tub are centerpiece amenities, especially for families. Both operate seasonally (May through October is typical). A minor note: one guest reported that the pool water slightly stained swimsuits and fingernails blue - likely a mineral or iron content issue common in older pool systems; bring clothes you don't mind if they're affected, or pack a fresh swimsuit.

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Summer (June–August) – Peak season. Diamonds Edge operates at full capacity with expanded menus. The pool is warm. All island trails and beaches are accessible. Staff levels are highest. Expect higher room rates and full occupancy. Summer foliage is lush; the island is most vibrant. Best for families and anyone who wants the full experience.

Early Fall (September–early October) – Shoulder season sweet spot. Weather remains mild. Foliage begins turning. The property is still reasonably staffed and restaurants remain open. Room rates drop. Crowds thin. This is when many reviewers choose to visit. Bring layers; mornings are crisp.

Late October–November – Transition season. By late October, staffing visibly thins. Diamonds Edge may reduce hours to weekends only or close certain weekdays entirely. Some amenities (like the outdoor fireplace) may not be maintained. The pool remains heated but is less of a draw. The island feels authentically quiet - ideal if solitude is the goal, but less ideal if you're expecting full service and dining variety. Book with lower expectations and you may be pleasantly surprised.

Winter–Spring – The property operates year-round but with minimal staff and highly reduced dining. The heating works; the rooms are clean. The experience becomes very stripped-down. Several reviews suggest the management prioritizes maintenance during these months. Only book if you genuinely want extreme quiet or are attending an off-season event.

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"Beautiful, unique location, comfortable well appointed and clean rooms. The beds were super comfortable. Staff was attentive and kind, super helpful and friendly. Maria was wonderful!" - Andrea, United States · Family · 10/10

"The location is absolutely gorgeous – although it's so close to Portland, it felt like we were in a different part of the world." - Joseph, Latvia · Couple · 10/10

"It's quiet clean and beautiful." - Samantha, United States · Group · 10/10

"The facility was just beautiful. I felt like I was in a Hallmark movie. It was secluded and peaceful and elegant." - Annette, United States · Couple · 9/10

"Beautiful room and facilities. Staff very accommodating. We came in the off season so it was a different lowkey experience but still very nice and peaceful." - Randy, United States · Couple · 10/10

"The rooms were very large with comfortable beds and bedding, the bathroom was large and very nice. We had a really great deck with rocking chairs." - Julie, United States · Group · 9/10

What guests mention less often (but honestly): The property functions best at full staffing, which occurs June through September. Late September and October visits catch fewer staff members, which slows service and may leave some amenities unmaintained (fireplaces, pool features, dining options). Guests booking shoulder-season stays who are aware of this trade-off - you get cheaper rates and more peace, but potentially slower service - report satisfaction. Those surprised by it mid-stay express frustration. The ferry schedule, while part of the charm, is infrequent off-season and non-negotiable; plan your Portland excursions carefully. Dining options on the island itself are nil aside from the hotel, so either eat at Diamonds Edge, bring groceries, or arrange a water taxi to the mainland. Finally, a small number of reviews (fewer than 15% overall) flag either maintenance issues in specific rooms or instances of poor dining service, typically during off-season stays.

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• Ferry terminal, Portland Old Port · 30 minutes by ferry; $27 return for two people; Casco Bay Lines operates the service.
• Downtown Portland shops and restaurants · 3.1 miles from hotel (accessible by ferry + car/taxi).
• Dock Square, Kennebunkport · 25 minutes by car from ferry terminal; seaside shopping and dining hub.
• Two Lights State Park · 20 minutes by car from ferry; rocky headlands, lighthouse, coastal trails.
• Cape Elizabeth Lighthouse · 15 minutes by car from ferry; iconic red-and-white tower and walking paths.
• Freeport outlets and LL.Bean flagship · 13 miles from the property (ferry + car); classic Maine shopping.
• Bicycle rentals on Great Diamond Island · On-site; explore the island's secluded beaches and walking trails without leaving the property.
• Kayaking and paddleboarding · Organized by the inn; launch directly into Casco Bay or arrange instruction.
• Fishing on the island · Saltwater and freshwater options; inquire with staff about licenses and guides.

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Is the inn directly on the water? The main building and many rooms overlook Casco Bay, but the property sits on an island accessible only by ferry. There's beach access on the island itself, but you won't step directly from your room into saltwater - you're a short walk away.

Is breakfast included in the room rate? Breakfast is not included in standard room rates. À la carte breakfast is available daily at Diamonds Edge when the restaurant is open. Some guests have requested that the hotel offer a complimentary continental option; this is not currently standard practice, though the on-site coffee house serves basics.

How often does the ferry run, and what's the cost? Casco Bay Lines operates service year-round, with more frequent sailings in summer (often multiple departures daily) and reduced schedules in off-season (typically 1–2 sailings daily). The round-trip is $27 for two adults. The ferry departs from Portland's Old Port. Check Casco Bay Lines' website before booking to confirm schedules for your travel dates.

What's the nearest airport, and how do I get there? Portland International Jetport is 6.2 miles from the inn. Fly into Portland, rent a car or take a rideshare to the Old Port ferry terminal (about 15 minutes from the airport), and catch the ferry to the island. Allow 90 minutes between arriving at the ferry terminal and departure time.

Is there parking at the property? Parking is available on the mainland near the ferry terminal. The inn arranges shuttle service from the terminal for guests. Off-season, secure your parking space early; rates run approximately $20–$40 per day depending on availability and timing.

Can I visit without staying overnight? The inn does not explicitly market day-trip or resort-access packages. Guests arriving by ferry are expected to be hotel guests. If you're interested in visiting Diamonds Edge restaurant without staying overnight, call ahead to confirm they accept outside diners and confirm hours - this varies seasonally.

What should I bring or know before arriving? Bring any dietary preferences or needs (diet sodas, specific breakfast items) in your booking notes; off-season staffing may not accommodate last-minute requests. Pack layers, especially if visiting September–October. The island has no convenience stores or markets, so groceries must be brought from the mainland or pre-arranged with the hotel (grocery delivery is available for a fee; call in advance).

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