Encompassing more than 22,000 acres of glacial hills, kettles, lakes, prairie restoration sites, pine woods and hardwood forests, Kettle Moraine is the must-see spot to meet Mother Nature head-on. Miles of lush trails await for hiking, biking, horseback riding, snowshoeing and cross-country skiing as well as a museum and gift shop at the forest headquarters. (If you’re brining Rover, check the DNR website to see which trails allow pets.) New to Kettle Morraine? Start with the popular John Muir trail system with loops from 1.25 to 12 miles and bring your own gear or rent at the quaint LaGrange General Store.