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3 hours 30 minutes
Mobile ticket
Embark on an unforgettable journey as you explore the enchanting Thousand Islands along the St. Lawrence River. Departing from Clayton, NY (US,) our intimate boat tour invites you to experience over 27 unique miles of stunning scenery and fascinating history. As we navigate US and Canadian waters, our expert local guides will share captivating tales and legends, bringing the rich heritage of the region to life. Get up close to the islands like never before, with exclusive views of opulent million-dollar homes on the famous "Millionaire's Row" and the impressive 1000 Island Bridge System. A highlight of the tour is Heart Island, where you have the opportunity to take a self-guided tour of the majestic Boldt Castle, a monument to George Boldt's enduring love for his wife, Louise. As the tour continues, we journey through the St. Lawrence Seaway, where you might catch a glimpse of oceangoing vessels making their way to the Great Lakes. Experience natural beauty, history, and romance
Wheelchair accessible
Infants and small children can ride in a pram or stroller
Service animals allowed
Transportation options are wheelchair accessible
Suitable for all physical fitness levels
No passport required
Exclusions: Cost of boat ticket does not include admission into Boldt Castle: Adults $12.50 / Children (5 to 12 years) $9/ Children 4 and Under Free / Boldt Castle Admission Tickets are available to purchase at our ticket booth when you check in for your tour, call us in advance to reserve, upon arrival at Boldt Castle
Please arrive 30 minutes prior to departure. Receive boarding pass from our blue ticket booth
Clayton Island Tours
Our Starting Location 39611 Chateau Lane, Clayton New York
Saint Lawrence River
Cruising among the 1000 Islands aboard a guided boat tour is among the most popular reasons visitors come here. Cruises include trips past dozens of islands, fairytale castles, lighthouses, island mansions and wildlife all accompanied by true tales of pirates, bootleggers and the Gilded Age rich and famous who all spent time here.
12:00pm
Sightseeing boat cruise
Restroom on board
Local naturalist guide
Entrance fees to Heart Island and Boldt Castle
Gratuities
Picnic Lunches are available for all tour $12.50 Adult/$8.00 Children Please call for Pre order
For a full refund, cancel at least 24 hours before the scheduled departure time.
811 reviews
Total reviews and rating from Viator & Tripadvisor
Cora S,Jun 21, 2026
- Review from Viator
Well organized, comfortable and good tour guide. We did not tour Boldt Castle due to the number of steps and physical limitations.
MaryEA2014,Jun 20, 2026
- Review from Tripadvisor
Tour guide Michel was so knowledgeable about the history and geography of the Thousand Islands! We learned so much! Captain Brian was funny and lead us through the trip carefully. Boldt Castle itself was the least interesting part of the tour for me. I'm glad it's being restored after 73 years of neglect, but for me, I enjoyed the time on the boat the most. From the others in the tour group, I think I'm the only one not thrilled with the Castle part of the tour. All in all, a good value and interesting.

Kaitlyn H,Jun 19, 2026
- Review from Tripadvisor
This was such a fun tour! Our tour guide had a wealth of knowledge, our captain had plenty of silly jokes, and we learned so much. Highly recommend!!!
864sydneye,Jun 19, 2026
- Review from Tripadvisor
Had a great time and the guide was very informative.
Sonia S,Jun 15, 2026
- Review from Viator
The guide was amazing, very knowledgeable and helpful. Knows a lot about the area and it's history. The castle is absolutely beautiful and everyone in our party of 13 enjoyed it. The check in was very quick and easy. The employees were very friendly and helpful. This is a must see. I was here 49 years ago and again 3 years ago and today. It never fails to amaze me.
Vanessa P,Jun 14, 2026
- Review from Viator
It was a wonderful experience and I hope that we can come back again one day. We really enjoyed the trip.
Darlene M,Jun 13, 2026
- Review from Viator
It was a great experience going to book another trip next year!!!!! Highly recommend this tour it was amazing
billwJ7062HL,Jun 13, 2026
- Review from Tripadvisor
We had an awesome time, thank you!
Diane K,Jun 12, 2026
- Review from Viator
A very good tour. Narrated by a guide who really knows the 1000 Islands. Plenty of opportunities to take pictures. I'd suggest a sweater as its much cooler on the water. The highlight was Bolt Castle. Most of us paid to see the castle and grounds. You're there about 1 1/2 hours which we though was enough time. Everything was great. I highly recommend this tour.




CharlieR886,Jun 10, 2026
- Review from Tripadvisor
WE took the 2PM tour aboard "Island Girl". I cannot recall the skipper's, nor our tour guide's names. But I can attest to their competency and good cheer. We had lot's of fun, and learned so much of the history of the area. The Castle and the Island it sits on, have to be seen. Absolutely stunning. I highly recommend these great people, and their operation.
Operated by Clayton Island Tours, LLC