Great Lakes Expeditions is a dive charter service that is rebreather friendly and caters to advanced open water certified divers. Our Chicago based operation will be providing weekly dive visits to the Straits of Mackinac wreck, which is not far from our home base at Diversey Harbor. We are also available to provide dive charters to many of the wrecks in the southern Lake Michigan area. We will work with you to help customize your dive charter with us.