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Boldt Castle and Yacht House, Alexandria Bay

History Museum · Museum
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Nestled on an island of the St. Lawrence River, Boldt Castle and Yacht House tells a tragic story of a wealthy couple who never got to live in their lavish estate. Straddling the border between the United States and Canada, the castle came to life in 1900, constructed by millionaire George C. Boldt (owner of the famed Waldorf Astoria Hotel in New York City). It was cancelled in 1904 due to the sudden death of his wife, but construction eventually resumed in 1977. Today you can see some incomplete and some finished rooms, a basement with a swimming pool and bowling lanes, hallways with pictures and artifacts, and a collection of wooden boats. Learn about how electricity was obtained in the early 20th century. Take a guided tour and explore the surrounding grounds. To visit Boldt Castle and Yacht House and get the most from your holiday in Alexandria Bay, create itinerary details personal to you using our Alexandria Bay trip builder site.
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Boldt Castle and Yacht House reviews

TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
2,007 reviews
Google
4.8
TripAdvisor
  • Boldt Castle is absolutely beautiful. The restoration has been underway for years and there still remains more work to be done. 
    Boldt Castle is absolutely beautiful. The restoration has been underway for years and there still remains more work to be done.  more »
  • The ride and tour was great but if you go, get back to the dock from the castle early. Our boat left 10 minutes early. Obviously we missed the boat. 
    The ride and tour was great but if you go, get back to the dock from the castle early. Our boat left 10 minutes early. Obviously we missed the boat.  more »
  • Only need an hour to tour the house and grounds but so worth it. Venture up into the the top of the house which hasnt been redone yet-pretty cool 
    Only need an hour to tour the house and grounds but so worth it. Venture up into the the top of the house which hasnt been redone yet-pretty cool  more »
Google
  • This was the first time to visit the area coming from the south US and going into Canada. Getting the tickets was quick but a bit complicated on which one to get. The girl at the window was good to help us out understand the differences. The boat ride was quick and smooth. The island itself was gorgeous. My family and I spent 1 hour there and it was too short. You can spend the entire day until 5 or so for the same price. The building are gorgeous and the history very interesting. I definitely recommend doing this and spend more than just one hour here.
  • This place was so amazing! The castle is being restored and much has, but there are rooms that they have left to show the progress, which is very interesting. Boat tour over was fun as well, lots of cool things to see... Highly recommend this one to see while in the area.
  • This is a beautiful castle with a very sad story. While walking around the Heart Island , you can feel how great is the effort in building this castle and also to keep it as a museum grade attraction. Thanks for all the people who worked behind the scene. This is a place that I always want to go back to visit again. I enjoyed the 1000 Island cruises too !
  • Beautiful place to visit in the Thousands Island region of the St. Lawrence River. The area can be extremely busy in the summer season. Beautiful architecture you just don't see many other places in this country. Much more accessible place to visit if you have access to a boat but there are tour boats as well.
  • First visit to the Castle. My family really enjoyed touring the Castle. The castle is well maintained. You can download the Boldt Castle app for audio guided tour. Spent an hour on the Island. But I think it's not sufficient. If you want to explore entire Island comfortably you will need at least 2.5 hours.

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