Uncle Sam Boat Tours stands out as Alexandria Bay’s premier boat tour operator, offering more cruise options than any other tour company in the Thousand Islands region. Located conveniently in the heart of Alexandria Bay, this business delivers flexible, passenger-focused experiences that let visitors explore the stunning St. Lawrence River landscape at their own pace.
What Sets Uncle Sam Apart
Most importantly, Uncle Sam Boat Tours provides something no other local operator offers: unlimited access to Boldt Castle. Because passengers control when they return to dock, visitors can spend as little as 1.5 hours exploring Heart Island or linger all day if they wish. This flexibility transforms a typical boat tour into a personalized adventure.
During your cruise through the scenic 1000 Islands, the boat brings you directly to Heart Island, home to the iconic Boldt Castle. Once docked, you’re free to wander the historic grounds on your own schedule. When ready to head back, the return trip to Alexandria Bay is included—no extra charge, no rush.
Flexible Touring Options
Besides that, visiting Boldt Castle remains completely optional. Passengers who prefer to skip the castle can return directly to the Alexandria Bay docks at the tour’s end. In addition, Uncle Sam Boat Tours offers multiple cruise packages, each tailored to different interests and time commitments.

Perfect Location
Situated just minutes from Boldt Castle, the docks provide easy access for both local residents and tourists. Therefore, whether you’re planning a quick scenic cruise or an extended exploration of the islands’ historical landmarks, Uncle Sam Boat Tours delivers convenience without compromise.
The variety of tour offerings means there’s an option for everyone—from families seeking a leisurely afternoon to history enthusiasts wanting deep dives into the region’s heritage. Because flexibility is built into every experience, visitors enjoy genuine control over their day on the water.