Peninsula State Park is one of Wisconsin's most popular outdoor attractions, a leafy oasis near a metropolitan area. With 3,776 acres of woodlands, lakeshore and lofty limestone bluffs, Peninsula is a magnet for hikers, campers, bicyclists, fishermen and golfers. Fishing in this portion of Lake Michigan is excellent, with plentiful stores of trout, walleye, smallmouth bass and perch. Two boat launches and a fishing pier in the park provide lake access in summer.
Ice fishing is popular in winter, with some campsites remaining open year-round.
Four campgrounds offer nearly 500 sites, some with lake views. Three group camp areas are designated for tent camping only. Reservations are recommended. There are 19 miles of hiking trails in the park. The Sentinel Trail is popular with wildflower lovers, with many varieties of colorful blossoms, such as the dwarf lake iris and yellow lady-slipper.