A private island on Annabessacook Lake for weddings, family reunions, retreats, or big gatherings. Sleep in whimsical stays, eat under event tents, paddle pristine water, and reset together in nature. Bring clothes, friends, off-leash pups & lots of food. We’ve got the rest: easy transport, comfy-real-beds, cooking options, hot shower & super clean, Maine Guide hospitality. All levels of nature lovers.
Helpful Guides
Guest Reviews from Revyoos — Showing 10 of 47 Reviews
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!
I stayed for the weekend and rented the island. I hosted my wedding there on Saturday and it honestly was everything I had ever dreamt of. The island reset crew and owners Kent/Heather are incredible and extremely welcoming, hospitable, and friendly. They went above and beyond to help make it the best weekend ever. I’d absolutely rent a stay on the island again in the future and would highly recommend for anyone else looking for a fun way to create memories with friends and family. 10/10 recommend and appreciate Kent and Heather for all they did to make it such a fantastic weekend for me and my group!
1BSI is such a special place! My husband and I discovered it last summer, ('25) when we stayed in the A-frame cabin. Since then, my husband returned in April '26 and stayed in Oaktagon, and we both came back this week (June '26) and stayed in Nautilus. Each structure is wonderfully different from the other, making you feel as if you are on a different vacation than the previous time. What is the same is the amazing support and spirit of Kent and Heather and their staff, who are always there if and when you need them. When you are on the island, you can turn off the noise and static of urban living (or you can stay online if you want to!), and enter a world where all there is to do is swim, kayak, rest in a hammock, cook on a grill, and count the stars. The vibe is playful but also simple, quiet, and above all, peaceful. It really is an oasis, perfect for those, like me, who enjoy camping but want just a bit more comfort, cleanliness, and support than you have when on your own. Treat yourself and go!
I had the pleasure of renting out the entire island for my brother and sister in law's combined bachelorette and bachelor party in the summer of 2025 with about 30 people in total for 3 days. I could not recommend this island and the team that run it more! Lets start with the staff: Kent is amazing! He was responsive, gave great recommendations for boat rentals (which if you have a crew I would suggest renting a pontoon boat), and went above and beyond to help make the weekend the best. Our boat broke down and he came with tools to help us fix it and gave us additional oil. We wanted to have a dance party and he was worried about sound travel over the water to neighbors so he went and did some research for us and found a silent disco set up that he rented (we paid for) for us and brought it out to be set up, he brought out water and all the other supplies we needed (paper goods). He provided multiple shuttle rides for us back and forth to the parking lot and the island even more than the usual schedule that they made. They have portable battery pack chargers that take 2 & 3 prong plugs and they will recharge and bring more out as needed (as there is no real electricity on the island except for lights in some of the cabins but no outlets). He gave us his personal number so we could message him for supplies as needed and rides to and from the parking lot on his pontoon. I planned this with him for a few months before going out to the island and it was a breeze and amazing to talk with him. Beyond just Kent, his staff are equally as helpful. Things were clean and when it needed cleaning they were right there. They helped us bring all our gear over and to all the different stays with their ATVs and unique wheel barrel train system they made (very fun to watch), they took our trash and resupplied us when needed. Very friendly and helpful all weekend long. Location: You are on a pristine Maine island surrounded by clean fresh water. It is the idealistic picture perfect Maine lake experience. On the island there are a ton of awesome stays their own uniqueness with how they are built and structured so you can have the experience you want. From durable permanent tents to, to a floating boat house, to intricately built and unique cabins. There is also plenty of space to put up your own tent if that is your thing. They are all built well and have good screens so bugs inside are minimal at best (but it's Maine so better get used to them, they will get inside).There is no refrigeration. You will need to bring coolers (And they can also help provide some), but they bring out icepacks for you each day as needed to replace that they have in a chest freezer on the main land (You need to bring your own drinking ice if needed, there is a store about 10 min away from the parking lot on the main land). There are some grills that have propane and in one of the stays there is a small kitchen, but the stove is rather small and it is a stove top only. Preplan your meals and keep the lasagna at home. You're camping think camp food. There are plenty of spots to set up as a home base for a large group which is what we did for food drinks and our dance party. They have tons of well cut trails that lead you around the island (about 1 mile around) that are great to walk and see the different sides of the lake. Each point of the island and the edges have floating docks to swim out to. The beaches they have are rocky so don't expect nice Caribbean sand out here in Maine. We have mud and rocks and that is the way we like it. This was an amazing weekend and I will be back! You can't beat the price and the service they offer. You also do not need to rent the whole island out like we did either. We had a large crew and figured it would be best with the activities we had planned. But you can rent out just one of the stays if you want to go on a nice romantic getaway with your partner. Just realize there may be others on the island with you so be respectful.
From the ferry ride over to the island, to the cabin itself, to the fall views, this was a PERFECT stay. We went at the end of October, so we caught the fall foliage; however, it was a bit too chilly out for canoeing etc. (the life jackets had been put away). Will absolutely be back to explore some more!!
Had a blast in a beautiful place! Everything is so thoughtful and well-organized!
This place is a hidden gem. Do yourself a favor and book your stay! Wait until you meet Kent (the owner). He made us feel right at home and accommodated our travel changes. We planned to paddle to the Nautilus floating cabin but it poured rain all day so we boarded the nifty ferry. Had an amazing experience and would highly recommend!
What a wonderful place to relax. Kent and his staff are amazing. Highly recommend booking a lake tour with Kent. The history of this area is amazing and Kent is knowledgeable about it all. Bring what you need and Kent will take care of the rest.
Events: Weddings, Families, Retreats (whole island) - FAQs
Can 1BSI host weddings and large group events?
Yes! Our island has hosted weddings, team retreats, training workshops, and multi-day gatherings with logistics support.
What group sizes can you accommodate?
We've supported groups as small as 10 and as large as 85 for retreats, ceremonies, and corporate events.
Is event catering and vendor support available?
We can assist with coordinating caterers, stylists, and other vendors - just ask us as you're planning.