On a Shepler’s Lighthouse Cruise, you’ll see these guardians of the Great Lakes like you’ve never seen them before! Fourteen historic lighthouses lie within easy cruising distance of Mackinaw City. Shepler’s large, spacious vessels provide safe, comfortable passage on these fascinating three or four hour tours. Choose from a westward (Lake Michigan side) or eastbound (Lake Huron side) cruise. All tours visit at least five lighthouses, pass directly under the mighty Mackinac Bridge and are professionally narrated by members of the Great Lakes Lighthouse Keepers Association.