Just south of Lake Winnebago, Wisconsin's Horicon Marsh often is called the Everglades of the North. It's a rest stop for migrating birds and home to 200 species.
What to do: Hike on the trails of Horicon National Wildlife Refuge and Horicon Marsh State Wildlife Area. Drive the 50-mile Auto Tour. Bicycle the 34-mile Wild Goose State Trail. Go canoeing or on a pontoon-boat tour from Horicon.
Events to catch: May 12-15, Horicon Marsh Bird Festival, with tours, hikes and banding.
Details: For more, see Life on Horicon Marsh.