Thousand Islands
Clayton, USA


Thousand Islands is a group of over 1,800 islands scattered in the Saint Lawrence River between the United States and Canada, known for its stunning natural beauty and historic castles. Visitors are greeted by diverse landscapes, from lush forests to quaint waterfront cottages, with the iconic Boldt Castle standing out among them, a testament to 19th-century opulence.
Boat tours offer the best way to explore the islands, with options available from late spring to early fall when the weather is pleasant. The nearby town of Clayton features charming shops and restaurants, making it an ideal spot for a leisurely afternoon. The reflection of castles in the water at sunset is a striking sight.
See it on a tour
Tours that visit Thousand Islands
Hand-picked experiences that include Thousand Islands on the itinerary — with what real travellers said after going.

Boldt Castle and Thousand Islands tour from Clayton
4.7· 792 reviewsFrom ₹3,141Two hours by boat — explore the Thousand Islands, view Boldt Castle, and learn about local history from expert guides.
“During our visit to friends near Clayton in NY, we chose this boat and castle tour after considering several options that fit our needs at a good price. The boat guide was excellent, sharing plenty of knowledge about the region along with entertaining anecdotes. I recommend sitting near the guide since the sounds from the river and boat can sometimes make it difficult to hear. The castle tour was enjoyable as well, and I appreciated the availability of a golf cart for those with mobility challenges, plus an elevator inside the castle.”— claudiahY1635ND on the Boldt Castle and Thousand Islands tour from Clayton tour
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