Mille-Îles

Thousand Islands Essentials

The Thousand Islands region spans the St. Lawrence River between New York and Ontario, characterized by historic landmarks and extensive parklands. This collection features Boldt Castle, a 120-room Rhineland-style mansion on Heart Island, and the 1000 Islands Tower, which provides panoramic views from 400 feet above the river. Natural sites include Wellesley Island State Park, offering over 2,600 acres of protected landscape, and the solar-powered Sunken Rock Light. Maritime exploration is central to the area, accessible via Wolfe Island’s ferry links and regional boat tours.

Boldt Castle

Boldt Castle is a major landmark and tourist attraction in the Thousand Islands region of the U.S. state of New York.

1000 Islands Tower

A 130-meter observation tower on Hill Island featuring three continuous observation decks with panoramic views of the St. Lawrence River and the Ivy Lea Bridge.

Church of Saint Lawrence

Church of Saint Lawrence is a historic Episcopal church located at Alexandria Bay in Jefferson County, New York.

Wolfe Island

The largest of the Thousand Islands, situated at the entrance of the St. Lawrence River. It serves as a transit point between Cape Vincent and Kingston via seasonal ferry services.

Wellesley Island State Park

Wellesley Island State Park is a 2,636-acre state park located on Wellesley Island in the St.

Keewaydin State Park

Keewaydin State Park is a 282-acre state park in the Town of Alexandria in Jefferson County, New York in the United States.

Sunken Rock Light

Sunken Rock Light is a lighthouse in Bush Island, New York. It was converted to solar power in 1988.

1000 Islands Cruises Rockport: Rockport Boat Line

Guided boat tours departing from the historic village of Rockport, providing views of Boldt Castle, Zavikon Island, and the summer homes along Millionaire’s Row.