1 Big Sustainable Island

Pet-Friendly Island A-Frame w/ Lake Access

Off-grid lake glamping retreat on Annabessacook Lake in Monmouth, Maine — near Winthrop.

Quick Answer: Pet-Friendly Island A-Frame w/ Lake Access is The Island A-Frame is a gentle reminder that enough really is enough. Enough comfort, enough nature, enough quiet, and enough adventure to leave you feeling full instead of fried. Tucked into a wooded corner of 1 Big Sustainable Island, this cozy A-frame invites you to slow down: sleep deeply, cook simple meals, sway in a hammock, warm yourself by the woodstove, and listen as loons and crackling fires take turns filling the air on Annabessacook Lake in Monmouth, Maine.

The Island A-Frame is a gentle reminder that enough really is enough. Enough comfort, enough nature, enough quiet, and enough adventure to leave you feeling full instead of fried. Tucked into a wooded corner of 1 Big Sustainable Island, this cozy A-frame invites you to slow down: sleep deeply, cook simple meals, sway in a hammock, warm yourself by the woodstove, and listen as loons and crackling fires take turns filling the air.

Guest Reviews from Revyoos — Showing 10 of 281 Reviews

Madelyn September 11 2026
Rating: 5.0 / 5

We had an amazing time at the A-frame! It was so cozy at night and the gazebo was the perfect outdoor kitchen. We spent lots of time on the dock, enjoying our meals and watching baby squirrels play. We borrowed a couple paddle boards and had a great time paddling and floating around the island. Kent was so helpful with answering our questions and checking in on us whenever he passed by. We hope to be back soon!

David Coronato September 08 2026
Rating: 5.0 / 5

It is obvious that Kent and Heather love what they are doing. Where else can you vacation with three dogs and your family. Sweet private sights where you can get unplugged from your weekly grind. I would love to bring my family, human and K9, back again!

Katie Cunningham September 08 2026
Rating: 5.0 / 5
Lily August 22 2026
Rating: 5.0 / 5

The A Frame was very lovely. A short walk to a private dock, and very quiet. Hoping to visit again for a longer stay!

Anuprita August 20 2026
Rating: 5.0 / 5

I was planning to stay here for 5 days. However, I had to cut my stay short and leave after 1 day due to an emergency. Throughout this experience, Kent was extremely helpful and kind. He was quick to respond and arranged a ferry ride for me to leave the island immediately. The hospitality from Kent and his entire team is truly unmatched! <br/>As far as the place itself is concerned, while I didn’t stay very long, I was definitely mesmerised by its beauty. It was calm, peaceful, private. Just perfect for unplugging and getting away. I’ve already planned to come back to the island in a couple of months so I can make up for my previous experience.

Betsy August 11 2026
Rating: 5.0 / 5

1 Big Sustainable Island was amazing! Kent and the rest of the staff were so responsive and accommodating. Everything went very smoothly. It was amazing that every group had a private dock—it never felt too crowded on the island! Our group is excited to return next summer.

Dave And Cathy July 30 2026
Rating: 5.0 / 5

We had a great time on the island. Everything was perfect. Kent and the crew really have everything figured out for their guests. No hassles, laid back island time. We will be coming back next summer for sure

Victoria July 28 2026
Rating: 5.0 / 5

The experience on the island from the care of the staff to the solitude and peace of the space was like no other!! We will definitely be back, it’s exactly what we wanted and needed!

Sean July 24 2026
Rating: 5.0 / 5

We stayed in the A-frame cabin for our 2-day fishing trip. Was just what we needed... private place to spend the night with a dock for our boat. Would recommend this off-the-grid experience to anyone. Great host and experience.

Leslie July 21 2026
Rating: 5.0 / 5

What a beautiful gem 1BSI is!!! Kent, Heather and crew are so kind and welcoming. They’ve got this whole thing figured out giving you the time to relax and enjoy. When we had a kiddo boo boo incident, they were on it immediately and did everything possible to ensure that we had what we needed. The a frame was perfect, the island and the lake are stunning and the peace and quite is so rare and incredible. Thanks Kent and family for letting us share a piece of your heaven!

A-Frame Acorn Abode FAQs

What's special about the A-Frame Acorn Abode?

The Acorn Abode is a classic A-frame cabin with a playful island twist. It's compact, cozy, and thoughtfully designed - perfect for guests who want a warm, wood-lined retreat tucked into the trees.

Are pets welcome in the A-Frame Acorn Abode?

Yes - well-behaved dogs are welcome in this stay. Please review pet expectations before booking to ensure a smooth island experience for everyone.

What's included in the stay?

A comfy bed, cooking essentials, free firewood, paddling gear (canoe or kayak), access to hot showers, and full access to island trails, public beach, a hammock swim dock, boat dock, and swimming spots.

How do I arrive at the A-Frame Acorn Abode?

You can paddle over, use the seasonal ferry, bring your own boat, or arrange transport. Once on the island, the Acorn Abode is reached by an easy walk.