You certainly don't feel like you're in Michigan as you meander through these amazing dunes on the shores of Lake Michigan, some of which reach 260 feet tall. The sand is the highlights here, but the park also offers 1,952 acres of recreational opportunities. The park has three miles of shoreline, six miles of hiking trails and is open year-round. It's also got some great swimming. The most amazing thing, is that on really clear days, you can see the Chicago skyline off in the distance.