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  • #1 Attraction on the River

Boldt Castle and Two Nation Tour

This intimate tour travels over 27 unique miles among many of the 1000 Islands through US and Canadian waters of the St. Lawrence River. We spend 75 minutes at Heart Island for a self guided tour of Boldt Castle and grounds.

Quick Details

This intimate tour travels over 27 unique miles among many of the 1000 Islands through US and Canadian waters of the St. Lawrence River.  We spend 75 minutes at Heart Island for a self guided tour of Boldt Castle and grounds. Many photo opportunities as we pass Freighters and Ocean Going Vessels traveling to and from the Great Lakes and ports around the world, millionaires row, private islands, and premier sights as your tour guide shares the history, mystery, legends and lore of the area.  Your boat, captain, and guide will be with you every nautical mile of this most popular tour in the 1000 Islands.

Adults

Ages 13 and up

$ 29

Children

Ages 5 to 12

$ 18

Youngsters

Ages 4 and under

Free

Seniors, Military, First Responders

$ 27

Explore the beauty of the 1000 Islands on our Boldt Castle Tour

Enjoy an intimate boat tour as we travel over 27 unique miles through US and Canadian waters among many of the 1000 Islands along the St. Lawrence River. Our professional local guides share rich history, legends and lore as we get closer to the islands than any other tour. View magnificent million-dollar homes, travel under American and Canadian spans of the 1000 Island Bridge System, and pass Rock Island Lighthouse on Rock Island.

At Heart Island guests have the option to take a self guided tour of millionaire George Boldt’s Castle, built as a testament of love for his wife Louise, before tragedy struck in 1904. Marvel at life in the “Gilded Age” for the wealthy who built magnificent castles and summer homes on islands as we travel through “Millionaire’s Row” and the St. Lawrence Seaway shipping channel with the possibility of viewing oceangoing vessels that travel from around the world to the Great Lakes of North America. Our small boats provide for a personal experience with our Captain and Crew. Each of our crew members have a unique, never recorded presentation, and a love of sharing the River with guests.

 Exclusions – Admission to Boldt Castle on Heart Island is not included in the price of boat tour tickets.  Adult’s $12.50 and Children (5-12) $9.00 / Tickets may be purchased through our website at the time of purchasing your boat tour tickets, upon check in the day of your tour, upon arrival at Boldt Castle on Heart Island, or at www.boldtcastle.com

2025 Schedule – 

Spring May 10 – May 21 10am and 2pm Saturday and Sunday
  2pm Monday – Friday
Memorial Day Weekend May 24 & 25 10am, 12pm, and 2pm Daily
  May 22 – June 27 10am, 12pm and 2pm Saturday and Sunday
    10am and 2pm Monday – Friday
Summer June 28 – September 2 10am, 12pm and 2pm Daily
Fall Sept 13 – October 13 10am and 2pm Daily

Highlights of This Tour Include:

  • This tour circumnavigates Wellesley Island, the largest US Island through Canadian Waters in the north and us waters in the south
  • Eel Bay
  • Canadian Steamboat Channel
  • The Lost Channel
  • Tom Thumb Island
  • Parks Canada
  • Rockport, Ontario
  • Canadian Palisades
  • Whirlpool Channel
  • Tom thumb Island
  • Million Dollar Canadian homes
  • Eel Bay
  • The Statue of St. Lawrence
  • St. Lawrence Seaway shipping channel
  • Rock Island Lighthouse on Rock Island
  • Travel under 2 spans of the 1000 Island Bridge System
  • Twin Pine Treehouse on Cherry Island
  • Millionaire’s Row
  • Devil’s Oven
  • Hopewell Hall
  • Boldt Castle on Heart Island
  • and so much more!

Meeting Location

Clayton Island Tours – 39611 Chateau Lane, Clayton, NY 13624

Frequently Asked Questions