Rock Cut State Park near Loves Park is one of the largest state parks in Illinois, centered on Pierce and Olson lakes just outside Rockford. Woods, prairie and water create a varied landscape with plenty of space to explore. More than 40 miles of trails serve hikers, bikers and horseback riders, and the lakes support fishing, boating and swimming. Campgrounds offer a comfortable base, and in winter the park is popular for ice fishing and cross-country skiing. There is no vehicle entry fee, and camping fees vary by site, from $12 to $50 per night. It is a great year-round destination in northern Illinois.