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.

1 Big Sustainable Island

Stay

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

Quick Answer: Stay is The whole 1BSI Island is a private island stay designed for weddings, families, and retreats who want the full island all to themselves on Annabessacook Lake in Monmouth, Maine.

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Stay

Ready to plan your overnight island stay?