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
  • Virtual Tour
    • Download the Boldt Castle App
    • The Alster Tower
    • The Castle
    • The Castle Interior
    • The Dove-Cote
    • The Entry Arch
    • The Gardens & Grounds
    • The Gazebo
    • The Power House
    • Renovations
    • Kestrel 1892 Steam Yacht
  • Weddings
  • History
  • News & Events
    • Independence Day Fireworks
    • Economic Impact in Region
  • Yacht House
  • Downloads
    • Download the Boldt Castle App
    • Literature
    • Photo Gallery
    • Videos
    • Wallpapers
  • Employment

Plan Your Visit To Boldt Castle

Getting to Boldt Castle:

Boldt Castle is located on Heart Island, in the United States, and is only accessible by water. From both Canada and the U.S., visitors may find transportation on either a tour boat (a list of providers can be found at the bottom of this page) or by personal pleasure craft. Passengers arriving from Canada must provide proper identification. For further information please refer to the U.S. Customs and Border Protection web-site www.cbp.gov.

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

***No Pets are allowed on Heart Island or the Boldt Yacht House with the exception of registered service animals.***

For our Canadian Visitors:

Boldt Castle is an Official Port of Entry into the United States in Alexandria Bay, New York with hours of operation starting at 10:30am and running to 5:30pm. During non-operating hours there is a video phone available for check in at the Alexandria Bay Municipal Dock for individuals entering or returning to the United States by boat. If you have any further questions, please call 315-482-9724. **We accept major credit cards and US cash.**

Special Package Rate:

Visit both Boldt Castle and the Boldt Castle Yacht House. Adult – $16.50 (13+ years) Child – $9.50 (5-12 years) Infant – $0.00 (4 years and under).

Boldt Castle Rates:

Adult – $13.50 (13+ years) Child – $9.50 (5-12 years) Infant – $0.00 (4 years and under) US Funds** For information on group rates please call 1-315-482-9724, or write the Thousand Islands Bridge Authority, Collins Landing, PO Box 428, Alexandria Bay, New York 13607.

Yacht House Rates:

Adult – $8.00 (13+ years) Child – $5.50 (5-12 years) Infant – $0.00 (4 years and under) US Funds** A shuttle from Heart Island provides access to the Boldt Castle Yacht House.

Tour Boat Operators from the U.S.:

Uncle Sam Boat Tours, Alexandria Bay, New York, USA
Web-Site: usboattours.com
Phone: 315.482.2611 or 1-800-253-9229
Daily Departures: every 30 minutes beginning at 10:30am

Clayton Island Tours, Clayton, New York, USA
Web-Site: www.claytonislandtours.com
Phone: 315-686-4820 Please call for Schedule.

Visit the Antique Boat Museum, Clayton, New York, USA
Tour George Boldt’s La Duchesse and take a speed boat ride on the St. Lawrence River.
Web-Site: www.abm.org
Phone: 315.686.4104

Tour Boat Operators from Canada:

Gananoque City Cruises, Gananoque, Ontario Canada
Web-Site: www.cityexperieces.com/gananoque
Phone: 888.717.4837

Rockport Cruises, Rockport, Ontario Canada
Web-Site: www.rockportcruises.com
Phone: 613.659.3402, 800-563-8687

For more information about the 1000 Islands Region please visit the Thousand Islands International Tourism Council at visit1000islands.com or 1-800-847-5263.

2025 Dates & Hours of Operation:

    Boldt Castle & Boldt Yacht House

    • May 10 - October 13:

      10:30 AM - 6:30 PM

    • Admissions Booth closes 1 hour prior to Boldt Castle closing.

    Special Hours:

    Boldt Castle and Yacht House will remain open until 7:30pm on Independence Day Weekend on Friday, July 4th and Saturday, July 5th.

    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.**

Keep In Touch!

Facebook
Twitter
Instagram

Rated #1 Thing To Do!

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

Facebook
Twitter
Instagram

Copyright © 2025 · Thousand Islands Bridge Authority | Boldt Castle · Site Design: Riverside Media, LLC.