Peninsula State Park, established in 1909, is a 3,776-acre state treasure on Wisconsin's Door County peninsula. Recreational opportunities are boundless. Visitors can hike, bike, boat, fish, golf and swim during spring, summer and fall. Winter offers cross country skiing, snowshoeing, sledding and snowmobiling. Camping, nature programs, and sightseeing are offered year-round. These are just a few recreation opportunities, come explore and see for yourself what Peninsula has to offer.