Geese, mallard--and occasional Chicagoland escapees--frequent the LaSalle Fish and Wildlife Area where this 5.2-mile loop hints at the history of the world's largest marsh.

Towering trees and hanging vines lend a primordial feel to this 3.6-mile lollipop above the banks of the mighty Wabash River.

Loop 5.7 miles into shaded hollows and up the highest dunes on Lake Michigan's southern shore in Indiana Dunes State Park.

Link a sandy shoreline, forested dunes, and a boggy wetland on this easy-going, 4.2-mile lollipop loop in Indiana Dunes National Lakeshore.

This sandy, 3.2-mile stroll in Indiana Dunes National Lakeshore climbs dunes, skirts an ancient marsh, and ends within a stone-skipping distance of Lake Michigan's coastline.

On this easy 6-mile loop, you'll cross Eagle Creek Reservoir on a scenic causeway, wander lovely woods, and catch views from a waterfront lookout.

Find rugged wilderness in central Indiana as you hike this 10.3-mile loop. Don't miss old Draper Cabin.

This out-of-the-way 967-acre park boasts the highest piece of land between St. Louis and Cincinnati and is packed with wooded ravines and seasonal treasures.

Catch a bird's-eye view of eastern Indiana's Whitewater Lake on this easy 2.3-mile out-and-back skirting a nature preserve and the a remote wooded shoreline.

Ride the bus to explore this 5.3-mile loop in Fort Harrison State Park featuring sun-dappled forests, seasonal flowers and, if you're quiet, wildlife.