How Alexandria Bay earned the score
Population 924 (US Census 2020), a St. Lawrence River village in Jefferson County, New York.
Situation A one-square-mile village at the edge of the Thousand Islands, with a season that runs roughly mid-May to mid-October and a shipping channel where ocean freighters pass the town docks. Its marquee attraction is not in the village at all. It sits offshore, on an island shaped like a heart.
Action Sold the boat ride for 150 years, then acquired its anchor by covenant: in 1977 the Thousand Islands Bridge Authority bought the unfinished Boldt Castle for one dollar and pledged every admission dollar back into restoration.
Result The castle drew 99,000 visitors in its first restored season and now runs about 160,000 a year against a record of 240,000. Summer swells the village of 924 past 15,000 people, inside a county that booked $331 million in visitor spending in 2023.
The Situation: Nine Hundred People at the Gate of an Archipelago
Alexandria Bay does not look like the headquarters of anything. It is a single square mile of Jefferson County, New York, pressed against the St. Lawrence River where the stream braids around the granite knobs of the Thousand Islands, and at the 2020 census it held 924 year-round residents (Wikipedia). Settlement began around 1817 as a timber landing, and by 1836 the place amounted to roughly 25 dwellings above a very good harbor (Wikipedia).
Two accidents of geography set up everything that followed. The first is scenery: the village faces one of the densest island clusters on the river, castles and cottages stacked on rocks a few hundred yards apart. The second is traffic. The deepwater course of the St. Lawrence Seaway, charted here as the American Narrows, runs directly past the village, and the marked channel squeezes to a least width of about 450 feet (Wikipedia). Oceangoing freighters bound between the Atlantic and ports as far inland as Duluth slide past close enough to the docks that visitors can read the hull names. The village never had to build a waterfront show. The river runs one on schedule.
The arithmetic is the story. Winter holds 924 people. A summer weekend brings more than 15,000 into the village at once (Wikipedia), most of them there for one reason: this is the American gateway to the archipelago, the place where the mainland trades cars for boats.
The dressing carries the name
Thousand Island dressing is local lore with a paper trail. The Clayton telling starts with Sophia LaLonde, a fishing guide’s wife who served her boiled-dinner dressing to shore parties; the actress May Irwin liked it, named it, and passed the recipe along, and it reached George Boldt, who had his maitre d’ Oscar Tschirky put it on the Waldorf-Astoria menu (Visit Clayton). A rival telling starts on Boldt’s own yacht. Either way, a region of fewer than 30,000 winter residents put its name on tables worldwide, which is brand reach most destination marketers would trade a season for.
The Task: Make Five Months Pay for Twelve
A north-country river town gets a short lease on summer. The castle season runs mid-May to mid-October (Wikipedia), and nearly everything the village monetizes is boat-borne, which means weather-borne. The task facing Alexandria Bay for a century and a half has been constant: give the traveling public a reason to stop at this dock rather than any other on the river, capture the spending in a few hot weeks, and hold enough of an off-season calendar to keep the storefronts alive until ice-out. Clayton sits twenty minutes upriver selling the same islands. Gananoque sells them from the Canadian side. The gateway role has never been guaranteed.
The Action: Build the Gate, Then Inherit the Castle
The village learned its trade in the Gilded Age. President Ulysses S. Grant’s 1872 visit put the Thousand Islands in the national press, and the grand hotels went up almost immediately: the Thousand Island House opened in July 1873 with room for 700 guests, while the Crossmon House, begun as a modest inn in 1839, expanded to match it (Heroes, Heroines and History). Steamers met the trains and fed the hotels, and Alexandria Bay spent the next several decades as a resort where industrialists built island homes offshore (Wikipedia). When the mansions faded, the village kept the one asset that mattered: the habit of putting visitors on boats.
A castle stopped mid-heartbeat
George C. Boldt ran the Waldorf-Astoria in New York and the Bellevue-Stratford in Philadelphia, and he summered on Hart Island, which he had reshaped and renamed Heart Island (Wikipedia). In 1900 he set roughly 300 stonemasons, carpenters, and artists to work on a six-story, 120-room Rhineland-style castle for his wife Louise, with tunnels, a powerhouse, Italian gardens, a drawbridge, a children’s playhouse called the Alster Tower, and a dove-cote (Boldt Castle, History). The build was to finish by the couple’s anniversary on June 14, 1904. Louise died suddenly on January 7, 1904, and Boldt stopped the work at once (Uncle Sam Boat Tours history). He had put over $2.5 million into the island by then (Wikipedia), and he never set foot on it again. For 73 years the shell stood open to winters and vandals, a monument with no keeper (Wikipedia).
The strangest part is what the abandonment did. A finished castle would have been one more Gilded Age pile. An unfinished one, visible from every passing tour boat, became the best story on the river: the hotelier who built a castle for his wife and could not finish it without her. Alexandria Bay’s anchor attraction is, structurally, a love story with a roofline.
The one-dollar covenant
The modern era began with paperwork. In 1977 the Thousand Islands Bridge Authority, the public body that operates the international bridge, acquired Heart Island and the nearby yacht house for one dollar, under an agreement that every dollar of castle revenue would be applied to restoration and preservation (Wikipedia). That covenant turned out to be the most productive clause in the region’s economy. The Authority opened the island in 1978 and counted 99,000 visitors in that first season; a typical year now runs about 160,000, and the record season hit 240,000 (Thousand Islands Bridge Authority). The Authority puts its reinvestment at more than $35 million in repairs and capital projects (TIBA), and published tallies of the full restoration and rehabilitation effort passed $50 million as of 2020 (Wikipedia). Two floors are fully restored and furnished, and the property ranks among the 25 most visited historic houses in the United States (TIBA).
The fleet and the second castle
None of it works without boats, and the boats are a business with its own centennial. Uncle Sam Boat Tours has run from the village since 1926, when a group of local operators pooled their launches as The Combine, formally the Combined Thousand Island Boat Tours (Uncle Sam Boat Tours). Still family-operated, the line marked 100 years on the river in 2026 (WWNY). It runs May 1 to October 31, from a ten-minute castle shuttle to two-hour island cruises and dinner cruises, and it holds the only unlimited stopover privilege at Boldt Castle, whose dock sits directly across from the village (usboattours.com).
The tours carry a second act downriver. On Dark Island, Frederick Gilbert Bourne, fifth president of the Singer Manufacturing Company, bought his own rock in 1902 and had architect Ernest Flagg raise a four-story, 28-room granite castle between 1903 and 1905, its stone quarried on nearby Oak Island and hauled across water and winter ice, its plan borrowed from the castle in Sir Walter Scott’s novel Woodstock, complete with secret passages, for a reported $500,000 (Singer Castle, Brief History). What was once one family’s retreat is now the other half of a two-castle itinerary, and the reason a day trip to Alexandria Bay can fill a weekend.
The Result: A Castle Economy on a Village Tax Map
Run the ratio and the village looks impossible. About 160,000 castle visitors a season, nearly all of them staged through local docks, against 924 year-round residents is roughly 170 guests per host, before counting anyone who came only to eat, boat, or watch the freighters (TIBA; Wikipedia). The summer village holds more than 15,000 people at a time, a sixteen-fold swell that local government, water, and parking have to absorb every July (Wikipedia).
The money is measured at the county line. Visitors spent over $700 million across the Thousand Islands region in 2023, and Jefferson County took the largest share of any county, $331 million, about 46 percent of the regional total (WWNY; Empire State Development / Tourism Economics). That is the output of a tourism machine whose most photographed component is a construction site frozen in 1904.
The calendar has a pirate in it. Bill Johnston, a War of 1812 privateer turned smuggler, seized and burned the British mail steamer Sir Robert Peel among these islands on May 30, 1838, hid from two navies in the archipelago’s caves, and ended his days pardoned and employed as keeper of the Rock Island Light from 1853 to 1861 (Wikipedia). The village turned him into programming: Bill Johnston’s Pirate Days, run by the Alexandria Bay Chamber of Commerce, stages invasions, parades, and battles each August, with the 2026 edition set for August 14 to 16 (Alexandria Bay Chamber of Commerce). As the 2025 festival opened, chamber executive director Ashley Carlos described the weekend as critical for Alex Bay, which is what an honest DMO says about a festival that fills the late-summer beds (WWNY).
There is a caution flag in the same ledger. Canadian visitors normally supply about 15 percent of Jefferson County’s visitor spending, and that spending fell more than 60 percent in 2025 (WWNY). A border-town gateway enjoys two markets and is exposed to both.
What the score says out loud
Alexandria Bay posts a 90, Destination Leader band, and the pillar grades sort its strengths honestly. Anchor is the star at 95: the castle is singular, boat-borne, bookable through multiple operators, and welded to the village’s identity. Stay reads 89 because the riverfront hotel row, led by properties that face Heart Island directly, keeps castle visitors overnight rather than losing them to the interstate. Web at 84.2 and Return at 83.6 are solid: reviews run warm and heavy, the imagery is experience-forward, and the August festival plus the boat season itself function as annual return rituals. Brand at 74.5 is the interesting gap, because the village shares its name-brand with an entire two-nation region, and Clayton and Gananoque sell the same islands. Curb at 60 is the grade the desk can only estimate: a hard-working seasonal main street photographed in shoulder season, provisional until a field walk. Downtown at 82 says the James Street blocks above the docks already do most of what a gateway needs.
What Is Next: The Centennial Season
The 2026 season is a stress test of the model in a good way. Uncle Sam Boat Tours is selling its hundredth year on the river (WWNY), the castle’s restoration continues annually under the 1977 covenant with revenue ring-fenced for the works (TIBA), and the chamber’s festival calendar carries the village into the shoulder months (visitalexbay.org). The structural question is the one the scorecard flags: how much of a boat-day economy can the village convert into overnight stays and off-season trips, especially in years when the Canadian market thins.
Why Other Towns Should Follow Alexandria Bay’s Lead
The replicable move here is not owning a castle. It is the covenant. Alexandria Bay’s anchor was a ruin with a famous story, and it became an economic engine the day a public authority bought it for a dollar and locked its revenue to its restoration. Stewardship, not construction, created the asset. The second move is just as portable: the village monetizes access rather than the attraction itself, selling the ride, the meal, the bed, and the view while the Authority runs the island. It is the same lesson Creative City Developments metered in Detroit Lakes, where Thomas Dambo’s trolls turned public parkland into a measurable tourism engine: the anchor draws the crowd, but the town’s job is the capture layer around it. And the third move is narrative discipline. A love story, a pirate, and a salad dressing are not amenities. They are the reasons people retell a place, and Alexandria Bay has spent a century keeping all three in print.