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Boldt Castle


An official Path Through History Site! This 120-room Rhineland-style castle and yacht house are one of the Thousand Islands' top attractions. In 1900, millionaire George Boldt commissioned a six-story castle for his wife, Louise. When Louise passed in 1904, Boldt was too heartbroken to continue construction. In the 1970s, the Thousand Islands Bridge Authority restored and completed the castle, now accessible to visitors by tour boat, water taxi, and private watercraft. Boldt Castle is located in the US, so passengers arriving by boat from Canada must provide proper identification for US Customs and Border Protection clearance.



  • On Ocean/Lake/River:
  • Wheelchair Accessible:

Things To Do

  • History and Museum:
  • Senior Discount:
  • Castles:
  • Historic Sites:
  • Path Through History:

Accessible Amenities

Blind/Low Vision
  • Blind/Low Vision Accommodations:
  • Audio Tour: Yes
  • Signage: Yes
  • Elevator with Braille or Raised Print Buttons: Yes
Deaf and/or Hearing Loss
  • Deaf and/or Hearing Loss Accommodations:
  • Portable Listening Device: Yes
  • Closed-Captioned Films/Videos: Yes
  • Accessible Amenities:
  • Accessible Car Parking Onsite: Yes
  • Assistive Equipment: Yes
  • Service Animal Relief: Yes
Mobility/Wheelchair Access
  • Mobility/Wheelchair Access Accommodations:
  • Accessible Bathroom: Yes
  • Accessible Entrance: Yes
  • Accessible Route: Yes
  • Accessible Elevator: Yes
  • Seating/Bench: Yes