Description
Some cruises call at Heart Island to enable passengers to look round Boldt Castle (NB: U.S. formalities), which is well worth a visit. It was built by the wealthy owner of New York's Waldorf Astoria, but was never completed.

The scenic road along the St Lawrence, between motorway exits 107 and 110A, has many lovely views over the water.
Hobbies & Activities category: Castle, chateau, palace;  Cruises - sightseeing by boat;  Scenic site or route
Attractions Near Boldt Castle, Heart Island, Thousand Islands