Best Boldt Castle Tours & Trips

This enchanting castle on Heart Island in the Thousand Islands has a fascinating tale behind it. Boldt Castle was designed by architects G. W. & W. D. Hewitt and commissioned by rich hotel tycoon George C. Boldt for his wife Louise to be their "dream summer home" on the St. Lawrence River. Construction began in 1900, however, Louise unexpectedly passed away shortly before the castle was to be finished. Boldt was heartbroken and left the palace unfinished for more than 70 years. Today, the restored Boldt Castle and the Boldt Yacht House are available for tours and events on the five-acre Heart Island located on the U.S. side of the Thousand Islands.
Show All

2 Results

Sort By:
Why book with Tours4fun?
Best Price Guarantee
Transparent Pricing
Travel Safety Assurance
24/7 Multilingual Support

Best Time to Visit Boldt Castle

Autumn2026/2027
Show All
October 2026
September 2027
Winter
Show All
Spring2027
Show All
April 2027
May 2027
Summer2027
Show All
June 2027
July 2027
August 2027

Reviews for Boldt Castle Tours

L
5-Day Premium East Coast All-Inclusive Tour: Niagara Falls - Thousand Island - Washington, D.C. | Stress-Free Travel

A very well-organized tour that allows you to visit beautiful places. My suggestions would be to spend more time exploring downtown Toronto and skip the tour of the Air and Space Museum in Washington. Kudos to both our guides, Victoria and Andrea.

Show All
T
3-Day All-Inclusive Niagara Falls Tour from New York: Toronto & Thousand Islands

A wonderful, well-managed and organized tour. The guide, Junior, was very clear, precise, and friendly. It was very enjoyable, thanks in part to him and the driver, who was always helpful and friendly. The hotels were comfortable and well-organized. Overall, a trip I would absolutely recommend.

Show All

Browse Boldt Castle Tour Types

Vacation Package

Explore Popular Boldt Castle Itineraries

Start City

New York

Insider Travel Offers

Sign up for early access to new tours, limited-time offers & travel perks.