Thousand Islands Thousand Islands-Frontenac Arch region was designated a World Biosphere Reserve by UNESCO in 2002. The Thousand Islands Bridge connects New York State and Ontario by traversing Wellesley Island at the northernmost point of Interstate 81 in Jefferson County and meets Highway 137, which leads to Highway 401. The waterfront is served by New York State Routes 12 and 37 and by the Thousand Islands Parkway in Ontario. Ontario also has the Waterfront Trail alongside the Parkway for cyclists who wish to see the area in an alternative way. Large freighters frequently ply the Saint Lawrence Seaway, but the area has
Leeds and the Thousand Islands Island, Halsteads Bay, Holland, Ivy Lea, Junetown, La Rue Mills, Lansdowne, Leeds, Legge, Long Point, Lyndhurst, Maple Grove, Mitchellville, Narrows, Oak Leaf, Outlet, Pooles Resort, Quabbin, Rockfield, Rockport, Sand Bay Corner, Seeley's Bay, Selton, Soperton, Sweets Corners, Taylor, Tilley, Union, Warburton, Washburns Corners, Waterton, Willowbank and Wilstead. Lansdowne, Ontario is a small town located just north of Ivy Lea, Ontario and 4 km north of Highway 401, at the intersection of Leeds and Grenville County Roads 3 and 34. It is a part of the township of Leeds and the Thousand Islands, Ontario. It can be accessed by former Kings