New England, New Brunswick, far eastern New York, and southern Quebec are also an island. Lake Champlain straddles the border between northern Vermont and New York. The lake drains north via the Richelieu River, which connects to the Saint Lawerence River and the Atlantic Ocean. At the south end of Lake Champlain, there’s the Champlain Canal, which goes west to the Hudson River, which also drains to the Atlantic.

The Hudson also connects to the Erie Canal, which would make northern New York its own island.