The Great Lakes Basin is the largest surface freshwater system on Earth. The more than 30,000 islands dotted throughout the basin provide some of the best ways to enjoy the Great Lakes. While the vast majority of these islands can only be reached by private boat or plane, a surprising number of islands-each with its own character and often harboring more than a bit of intrigue in its history-can be reached by merely taking a ferry ride, or crossing a bridge, offering everyone the chance to experience a variety of island adventures.

Great Lakes Island Escapes: Ferries and...