Kingston 1000 Islands Cruises -Ontario-Canada

Location

The Thousand Islands are located at the outlet of Lake Ontario and spans part of the Saint Lawrence River, where it exits the lake. The US-Canadian international border divides the region into parts of the US state of New York, specifically St. Lawrence County and Jefferson County, and the Canadian province of Ontario, namely Frontenac County and the United Counties of Grenville and Leeds. Geologically, some of the islands are located where part of the Canadian Shield runs south across the Saint Lawrence River and merges with the Adirondack Mountains. UNESCO designated the Frontenac Islands-Frontenac Arch Region as a World Biosphere Reserve in 2002.
Notable Islands

Wolfe Island is the largest island in the region, occupying an area of about 48 square miles. The island is located in Frontenac County and was the traditional hunting land of the Tyendinaga Mohawk community. Wolfe Island has about 1,400 permanent residents, but its population increases during the summer. Other large islands include Howe Island, Wellesley Island, and Grindstone Island. The ruins of Fort Haldimand, which was built in 1779, is located on Carleton Island. Just Room Enough Island is the smallest inhabited American island within the Thousand Islands. Additionally, some of the islands are privately owned. For example, tobacco magnate Charles G. Emery formerly owned Calumet Island, while the Skull and Bones secret society owns Deer Island.

https://www.worldatlas.com/articles/where-are-the-thousand-islands.html