11. 1000 Islands sightseeing boat tour from Clayton
4.9· 539 reviews· 5 hoursHalf-day cruise on the St. Lawrence River featuring Boldt Castle, Millionaires Row, lunch included, with no passport required.
“It was a gorgeous day on the boat filled with rich history, interesting facts, and a tasty lunch. We made stops at Boldt Castle and the Rock Island Lighthouse, allowing ample time to explore. An excellent trip!”— laurasY6261LO
22. Boldt Castle and Thousand Islands tour from Clayton
4.7· 792 reviews· 3.5 hoursTwo 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
33. Glass bottom boat tour of Rock Island Lighthouse on the St. Lawrence River
4.7· 98 reviews· 2.8 hoursTwo hours on a glass-bottom boat — view underwater life and wildlife, rock Island stop for lighthouse access and a museum visit.
“Visiting the Rock Island Lighthouse was a fantastic experience, and I found the history of both the lighthouse and its keepers to be quite captivating. The guides on the boat and at the lighthouse were friendly and very well-informed. We had a wonderful time and I would definitely recommend this tour.”— P3943RIscotts
44. St. Lawrence River cruise — islands, lighthouses, and Boldt Castle
4.7· 49 reviews· 2 hoursTwo-hour narrated cruise covering 25 miles — navigate the St. Lawrence River and see lighthouses, Boldt Castle, and luxury summer homes along Millionaires Row.
“The tour provided an outstanding narrative about the 1000 Islands. We were fortunate to have perfect weather, which enhanced the experience, especially the visits to Boldt Castle and the lighthouse.”— fayeg359
55. Sunset cruise on the St. Lawrence River from Clayton
4.5· 90 reviews· 2 hoursTwo hours on the St. Lawrence River — scenic sunset views, birdwatching, and a captain's choice route showcasing the beauty of the islands.
“The two-hour sunset cruise was a delightful experience. The captain expertly navigated to the best spots for capturing stunning sunset photographs. I also appreciated the good range of both alcoholic and non-alcoholic drinks available for purchase. Both the bartender and captain were very friendly. I would highly recommend this outing.”— Upstategal
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