Bonnie Castle Resort & Marina

Located on the shores of the St. Lawrence River in Alexandria Bay, New York, Bonnie Castle Resort is your gateway to the breathtaking beauty of the Thousand Islands. A world of beauty, history, and relaxation awaits you at Bonnie Castle Resort. Enjoy fine dining in our Manor House Restaurant, grab a sandwich on the dock at The Pointe Bar and Grill, relax by the pool, or simply sip a cocktail on our expansive decks overlooking Boldt Castle on Heart Island. Visiting by boat? Take advantage of our full-service marina. Whether you're looking for a fun family getaway or a perfect spot to host your wedding or other event, Bonnie Castle Resort and the Thousand Islands region offer something for everyone. We look forward to making your stay as enjoyable and relaxing as possible.