Official Boldt Castle Website - Alexandria Bay NY in the Heart of the 1000 Islands

1000 Islands NY tour St. Lawrence River

  • Welcome
  • Visiting
    • Plan Your Visit
    • Rules Of Boldt Facilities
    • Hospitality
    • Photography
    • Download the Boldt Castle App
  • Virtual Tour
    • The Alster Tower
    • The Castle
    • The Castle Interior
    • The Dove-Cote
    • The Entry Arch
    • The Gardens & Grounds
    • The Gazebo
    • The Power House
    • Kestrel 1892 Steam Yacht
  • Weddings
  • History
  • News & Events
    • Renovations
    • Independence Day Fireworks
    • Economic Impact in Region
  • Yacht House
  • Employment

Hours of Operation

Boldt Castle and the Boldt Castle Yacht House will open May 12th and close on October 21st for the 2018 Season.  See listing of full Summer hours below:

June 22:  10:30 AM – 6:30 PM

June 23 – August 26: 10:30 AM – 7:30 PM

August 27 – September 23: 10:30 AM – 6:30 PM

September 24 – October 8:  10:30 AM – 5:30 PM

October 9 – October 21: 11 AM – 5:00 PM

Special Hours:

Boldt Castle will remain open until 7:30pm on Memorial Day Weekend on Saturday May 26th and Sunday May 27th and remain open until 7:30pm on Labor Day Weekend on Saturday September 1st and Sunday September 2nd. In addition Boldt Castle will stay open until 6:30pm on Columbus Day/Canadian Thanksgiving Weekend on Saturday October 6th and Sunday October 7th.

For more info: 1.800.847.5263
Boat tours from both the U.S. and Canada stop at Heart Island. Extensive docking is available for private pleasure craft. A shuttle from Heart Island provides access to the Boldt Castle Yacht House.

2026 Dates of Operation:

    Boldt Castle & Boldt Yacht House

    • May 9 - October 12, 2026

      For more info: 315.482.9724

      **We accept major credit cards and US cash.**

      For more info: 315.482.9724

      Boat tours from both the U.S. and Canada stop at Heart Island. Extensive docking is available for private pleasure craft. A shuttle from Heart Island provides access to the Boldt Castle Yacht House.

      Please Note: The Castle does not have climate control. Please dress appropriately for the weather.

      **We accept major credit cards and US cash.**

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Web site courtesy of the:
Thousand Islands Bridge Authority / Boldt Castle
PO Box 428, Collins Landing
Alexandria Bay, NY 13607

In Season: 315-482-9724
Off Season: 315-482-2501

Coordinates:
+44° 20' 40.29" N, -75° 55' 21.27" W

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