1 Big Sustainable Island

Events: Weddings, Families, Retreats

Maine glamping for large groups on Annabessacook Lake in Monmouth, Maine — near Winthrop!

Quick Answer: Events: Weddings, Families, Retreats is 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 on Annabessacook Lake in Monmouth, Maine.

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.

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.