As the lake level approached almost 1 meter (~3 ft) below average, Fisherman's Island off the coast of Charlevoix, Michigan (in Fisherman's Island State Park) gained a narrow connection to the mainland. The addition of this little land bridge means the island is now technically a peninsula.
The animation below shows 18 years from April 1994 to April 2012:
The reduction in water levels has exposed rocks and fossils all over the Northwestern Michigan coastline. If you're a collector, get out there now! I've found some great halysites, hexagonaria, brachiopods, gastropods, and pelecypods in nearby Traverse Bay. DO NOT COLLECT IN STATE/NATIONAL PARKS though (you can get fined for that).