THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Cruise 27 miles of the Thousand Islands, cross into Canadian waters without a passport, and explore Boldt Castle on Heart Island. This guided boat tour pairs Gilded Age history with shoreline geology and wildlife viewing.
Cruise 27 miles of the Thousand Islands, cross into Canadian waters without a passport, and explore Boldt Castle on Heart Island. This guided boat tour pairs Gilded Age history with shoreline geology and wildlife viewing.
Verified experiences and guided adventures in the surrounding area.
Operated by Clayton Island Tours, LLC · Clayton, New York
The boat slips away from Clayton’s blue ticket booth and the St. Lawrence opens like a navigable map of stone and water. Islands rise as low, wind-scoured bluffs and manicured lawns; the engine’s steady thrum keeps time while gulls wheel and an osprey hovers above a channel that dares you to stare.
easy.
3–3.5 hours.
Suitable for all fitness levels; able to board a small craft and move across a few steps
No passport is required for this tour as operated; the trip crosses into Canadian waters but returns to the U.S. — staff will advise if rules change.
Yes, the vessel is equipped with on-board restrooms for passenger use during the 3.5-hour cruise.
No — Boldt Castle admission is extra (adult and child rates apply) and can be purchased at the ticket booth when you check in or at the castle.
Yes, the operator lists wheelchair-accessible transportation and boarding assistance may be available; notify them of special requirements when booking.
Boldt Castle was begun by George Boldt in the early 20th century and left incomplete for decades after his wife’s death; the islands hosted steamboats, bootleggers, and Gilded Age summer communities.
The Thousand Islands’ shorelines are sensitive; follow no-wake zones, avoid landing on private islands, and be mindful of invasive species like zebra mussels when moving equipment between water bodies.
Clayton Island Tours, LLC operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
Book with Clayton Island Tours, LLC
Book directly with Clayton Island Tours, LLC for the best rates and real-time scheduling.
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