1 Big Sustainable Island

Island Treehouse on Lake: Pet-Friendly Glamping

Unique treehouse glamping experience on Annabessacook Lake in Monmouth, Maine — near Winthrop.

Quick Answer: Island Treehouse on Lake: Pet-Friendly Glamping is The Oaktagon Tree House is what happens when you decide to live with the forest instead of just visiting it. Built around a living red oak (her name is Annie), this octagonal tree house invites you up into the canopy, where birds provide the soundtrack and the lake glimmers below. Perched on a 14-acre island just a half-mile from shore, it’s a place to slow down, look outward through leaves and branches, and remember what it feels like to be held by trees on Annabessacook Lake in Monmouth, Maine.

The Oaktagon Tree House is what happens when you decide to live with the forest instead of just visiting it. Built around a living red oak (her name is Annie), this octagonal tree house invites you up into the canopy, where birds provide the soundtrack and the lake glimmers below. Perched on a 14-acre island just a half-mile from shore, it’s a place to slow down, look outward through leaves and branches, and remember what it feels like to be held by trees.

Guest Reviews from Revyoos — Showing 10 of 156 Reviews

Kyle June 24 2022
Rating: 5.0 / 5

super cool spot! Kent was fantastic and the yurt was cooler than expected. excellent place for a little peace and quiet.

Jasmin June 21 2022
Rating: 5.0 / 5

read this! if you need a place to decompress connect with nature and <br/>test out your self reliance, this is the perfect place to be.<br/>watching amazing sunsets on the lake, being on a dog friendly island<br/>and an amazing host that makes sure your stay goes as smooth as planned.<br/>I've traveled many places this one is def the highlight of the year.<br/>I will never forget this experience.

Laurie June 19 2022
Rating: 5.0 / 5

A friend and I spent 3 days on the island, lodging in the yurt. It is a great place for relaxing and escaping the world. We did some exploring, sat around the shore and enjoyed the view. In the evenings, we enjoyed the fire and spent a lot of time reading and playing games. It's a wonderful place to unplug from the busy world and enjoy the sights and sounds of nature. Kent was an awesome host. And I especially liked the island dogs, Shadow and Sky.

Kristen June 02 2022
Rating: 5.0 / 5

I almost shouldn’t give 5 stars for accuracy because pictures do not do this place justice. There are so many thoughtful details that went into the design of this yurt and the decor and wood stove make this place feel so homey. Our vacation to the Oaktagon Treehouse was nothing short of perfection, with the exception of the brown tail mouth rash that is only a risk for a short time in the spring. Even with the itching, we would face those caterpillars again to enjoy the luxury of this little island paradise and look forward to returning later in the year when they have turned to moths and flown away. Kent was a lovely host and quick to respond to any questions or needs we had. He was very interested in knowing what could be done to make the stay even better, but we really couldn’t think of anything. He has thought of everything to make this off-grid getaway a five star experience, and his passion for this little island shows. We are already planning our next trip to this amazing location.

Salina May 29 2022
Rating: 5.0 / 5

quiet and peaceful.<br/>excellent host.<br/>can’t wait to go back!

Hannah April 29 2022
Rating: 5.0 / 5

The Oaktagon Treehouse is a great place for a getaway! Kent was very helpful during our stay and was always there in a jif if we needed anything! Definitely recommend if you want to get away from your standard routine living for a night or two!

Rebecca April 22 2022
Rating: 5.0 / 5

You can't go wrong here. Unless you aren't looking for the coolest stay, complete serenity, and most gracious hosts ever!

Megan November 14 2021
Rating: 5.0 / 5

We loved our stay on one big sustainable island! We went in November and the woodstove kept us nice and warm in the oaktagon. We lucked our and got the whole island to ourselves which was a real treat! Joanne and Kent do a great job with the island, thank you for our stay!

Trenton November 13 2021
Rating: 5.0 / 5

Staying on One Big Sustainable Island is an exceptional experience. Kent and Jo are excellent hosts who have built two beautiful and meaningful houses. We loved every minute of our stay and can’t wait to return.

Robert October 25 2021
Rating: 5.0 / 5

Straight up a cool experience! Would not change a thing based on what my expectations were for a “off grid” evening. Escape to awareness and get ready to enjoy how fun it is to be with your environment. Accommodations at the Oaktagon are perfect, comfortable and provide all you need. Totally recommend to anyone in search of unplugging, a quiet night without distractions or a cool experience.

Oaktagon Treehouse FAQs

What's special about this treehouse stay?

Sleeping in the canopy offers a new perspective - birds at eye level, lake breezes through the trees, and a quiet sense of being tucked into the forest.

Is this stay suitable for kids or pets?

Who doesn't love a tree house! Kids and pets are welcome, and there's lots of space for them.

What's included in the stay?

Comfortable sleeping arrangements, private bathroom, firewood, cooking essentials, canoe/kayak access, and full use of island trails, a hammock swim dock, boat dock, swimming spots, and shared beach and shower.

How do I access this stay?

Arrive at the island by paddle, ferry, or boat, then follow marked trails to your Oaktagon Treehouse.