Alexandria Bay, NY

Alexandria Bay is a small village in Jefferson County, New York, sitting on the south shore of the St. Lawrence River where it widens into the famous Thousand Islands. The year-round population is approximately 1,000, though the village swells considerably during the warm months when seasonal residents, boaters, and tourists arrive. It serves as the most popular gateway community to the Thousand Islands, a scenic archipelago that straddles the U.S.–Canada border, and it has a distinctly tourist-oriented character with a bustling waterfront in summer. The nearest sizable American city is Syracuse, about 120 miles to the south, roughly a 2.5-hour drive; Watertown is closer at around 30 minutes south, while Ottawa sits across the river in Ontario.

Boldt Castle is Alexandria Bay's signature attraction, set on Heart Island just a short scenic boat ride from the village docks. Begun in 1900 by hotel magnate George C. Boldt as a tribute to his wife, the stone-and-granite structure was never finished and now stands as a beautifully preserved ruin-turned-museum, restored and maintained by the Thousand Islands Bridge Authority. Visitors typically reach it via a short ferry ride from the mainland or by private boat, and the adjacent yacht house and grounds are part of the same tour experience.

The wider Thousand Islands region offers the broader draw, with the river dotted by roughly 1,800 islands between the mainland and the Canadian shore. The Thousand Islands Bridge, just east of the village, carries travelers across to Ontario and also provides car access to Wellesley Island, which hosts a state park, marinas, and campgrounds. Sightseeing and dinner cruises depart regularly from the Alexandria Bay waterfront throughout the summer, giving visitors an easy way to take in the mix of grand island estates, small lighthouses, and quiet wooded coves.

About 20 minutes south along the river, the small village of Clayton offers a complementary stop with its historic downtown and the Antique Boat Museum, which chronicles the area's long relationship with St. Lawrence River craft and runs a notable antique boat show each summer. For those willing to drive a bit farther, the lakes and trails of the broader North Country — including stretches of the eastern Lake Ontario shoreline and the wild southern Adirondack foothills — lie within roughly an hour.

For short-term-rental investors, Alexandria Bay offers a clear seasonal tourism economy wrapped around one of the Northeast's most distinctive scenic settings. The combination of an international border crossing, a marquee historic attraction, a park-like river landscape, and steady summer traffic from boaters, families, and Canadian day-trippers gives the village a consistent draw during the May-through-October high season, even though the pace slows considerably once the leaves turn.